Home / 28,569.76-42,854.40-7,793.28

Finding the Fourth Proportional to 28,569.76, 42,854.40 and 7,793.28

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Solution

The fourth proportional to 28,569.76, 42,854.40 and 7,793.28 is: 11,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,569.76 : 42,854.40 = 7,793.28 : x
  2. Step 2: Convert to fraction form
    28,569.76/42,854.40 = 7,793.28/x
  3. Step 3: Cross multiply
    28,569.76x = 42,854.40 × 7,793.28
  4. Step 4: Simplify right side
    28,569.76x = 333,976,338.43
  5. Step 5: Solve for x
    x = 333,976,338.43/28,569.76
  6. Step 6: Final answer
    x = 11,689.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.