Home / 28,377.28-39,095.40-22,406.74

Finding the Fourth Proportional to 28,377.28, 39,095.40 and 22,406.74

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Solution

The fourth proportional to 28,377.28, 39,095.40 and 22,406.74 is: 30,869.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377.28 : 39,095.40 = 22,406.74 : x
  2. Step 2: Convert to fraction form
    28,377.28/39,095.40 = 22,406.74/x
  3. Step 3: Cross multiply
    28,377.28x = 39,095.40 × 22,406.74
  4. Step 4: Simplify right side
    28,377.28x = 876,000,463.00
  5. Step 5: Solve for x
    x = 876,000,463.00/28,377.28
  6. Step 6: Final answer
    x = 30,869.78

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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.