Home / 38,716.01-53,432.13-21,724.83

Finding the Fourth Proportional to 38,716.01, 53,432.13 and 21,724.83

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Solution

The fourth proportional to 38,716.01, 53,432.13 and 21,724.83 is: 29,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,716.01 : 53,432.13 = 21,724.83 : x
  2. Step 2: Convert to fraction form
    38,716.01/53,432.13 = 21,724.83/x
  3. Step 3: Cross multiply
    38,716.01x = 53,432.13 × 21,724.83
  4. Step 4: Simplify right side
    38,716.01x = 1,160,803,940.79
  5. Step 5: Solve for x
    x = 1,160,803,940.79/38,716.01
  6. Step 6: Final answer
    x = 29,982.53

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Half scale
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Double scale
Find fourth proportional to 38,717.01, 53,433.51 and 21,725.83
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.