Home / 38,432.66-53,039.51-21,666.74

Finding the Fourth Proportional to 38,432.66, 53,039.51 and 21,666.74

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Solution

The fourth proportional to 38,432.66, 53,039.51 and 21,666.74 is: 29,901.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,432.66 : 53,039.51 = 21,666.74 : x
  2. Step 2: Convert to fraction form
    38,432.66/53,039.51 = 21,666.74/x
  3. Step 3: Cross multiply
    38,432.66x = 53,039.51 × 21,666.74
  4. Step 4: Simplify right side
    38,432.66x = 1,149,193,272.90
  5. Step 5: Solve for x
    x = 1,149,193,272.90/38,432.66
  6. Step 6: Final answer
    x = 29,901.48

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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.