Home / 38,725.03-53,436.15-21,727

Finding the Fourth Proportional to 38,725.03, 53,436.15 and 21,727

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Solution

The fourth proportional to 38,725.03, 53,436.15 and 21,727 is: 29,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,725.03 : 53,436.15 = 21,727 : x
  2. Step 2: Convert to fraction form
    38,725.03/53,436.15 = 21,727/x
  3. Step 3: Cross multiply
    38,725.03x = 53,436.15 × 21,727
  4. Step 4: Simplify right side
    38,725.03x = 1,161,007,231.05
  5. Step 5: Solve for x
    x = 1,161,007,231.05/38,725.03
  6. Step 6: Final answer
    x = 29,980.80

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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.