Home / 28,281.17-42,414.74-9,560.79

Finding the Fourth Proportional to 28,281.17, 42,414.74 and 9,560.79

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Solution

The fourth proportional to 28,281.17, 42,414.74 and 9,560.79 is: 14,338.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.17 : 42,414.74 = 9,560.79 : x
  2. Step 2: Convert to fraction form
    28,281.17/42,414.74 = 9,560.79/x
  3. Step 3: Cross multiply
    28,281.17x = 42,414.74 × 9,560.79
  4. Step 4: Simplify right side
    28,281.17x = 405,518,422.04
  5. Step 5: Solve for x
    x = 405,518,422.04/28,281.17
  6. Step 6: Final answer
    x = 14,338.81

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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.