Home / 38,725.14-53,437.58-21,727.05

Finding the Fourth Proportional to 38,725.14, 53,437.58 and 21,727.05

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Solution

The fourth proportional to 38,725.14, 53,437.58 and 21,727.05 is: 29,981.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,725.14 : 53,437.58 = 21,727.05 : x
  2. Step 2: Convert to fraction form
    38,725.14/53,437.58 = 21,727.05/x
  3. Step 3: Cross multiply
    38,725.14x = 53,437.58 × 21,727.05
  4. Step 4: Simplify right side
    38,725.14x = 1,161,040,863.90
  5. Step 5: Solve for x
    x = 1,161,040,863.90/38,725.14
  6. Step 6: Final answer
    x = 29,981.58

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Half scale
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Double scale
Find fourth proportional to 38,726.14, 53,438.95 and 21,728.05
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.