Home / 38,432.50-53,036.85-21,665.50

Finding the Fourth Proportional to 38,432.50, 53,036.85 and 21,665.50

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Solution

The fourth proportional to 38,432.50, 53,036.85 and 21,665.50 is: 29,898.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,432.50 : 53,036.85 = 21,665.50 : x
  2. Step 2: Convert to fraction form
    38,432.50/53,036.85 = 21,665.50/x
  3. Step 3: Cross multiply
    38,432.50x = 53,036.85 × 21,665.50
  4. Step 4: Simplify right side
    38,432.50x = 1,149,069,873.68
  5. Step 5: Solve for x
    x = 1,149,069,873.68/38,432.50
  6. Step 6: Final answer
    x = 29,898.39

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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.