Home / 28,833.92-39,788.64-18,781.61

Finding the Fourth Proportional to 28,833.92, 39,788.64 and 18,781.61

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Solution

The fourth proportional to 28,833.92, 39,788.64 and 18,781.61 is: 25,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,833.92 : 39,788.64 = 18,781.61 : x
  2. Step 2: Convert to fraction form
    28,833.92/39,788.64 = 18,781.61/x
  3. Step 3: Cross multiply
    28,833.92x = 39,788.64 × 18,781.61
  4. Step 4: Simplify right side
    28,833.92x = 747,294,818.38
  5. Step 5: Solve for x
    x = 747,294,818.38/28,833.92
  6. Step 6: Final answer
    x = 25,917.22

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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.