Home / 28,344.59-42,521.54-8,618.57

Finding the Fourth Proportional to 28,344.59, 42,521.54 and 8,618.57

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Solution

The fourth proportional to 28,344.59, 42,521.54 and 8,618.57 is: 12,929.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.59 : 42,521.54 = 8,618.57 : x
  2. Step 2: Convert to fraction form
    28,344.59/42,521.54 = 8,618.57/x
  3. Step 3: Cross multiply
    28,344.59x = 42,521.54 × 8,618.57
  4. Step 4: Simplify right side
    28,344.59x = 366,474,825.90
  5. Step 5: Solve for x
    x = 366,474,825.90/28,344.59
  6. Step 6: Final answer
    x = 12,929.27

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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.