Home / 39,432.12-54,416.40-22,435.92

Finding the Fourth Proportional to 39,432.12, 54,416.40 and 22,435.92

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Solution

The fourth proportional to 39,432.12, 54,416.40 and 22,435.92 is: 30,961.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,432.12 : 54,416.40 = 22,435.92 : x
  2. Step 2: Convert to fraction form
    39,432.12/54,416.40 = 22,435.92/x
  3. Step 3: Cross multiply
    39,432.12x = 54,416.40 × 22,435.92
  4. Step 4: Simplify right side
    39,432.12x = 1,220,881,997.09
  5. Step 5: Solve for x
    x = 1,220,881,997.09/39,432.12
  6. Step 6: Final answer
    x = 30,961.61

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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.