Home / 28,414.90-42,607.29-12,613.06

Finding the Fourth Proportional to 28,414.90, 42,607.29 and 12,613.06

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Solution

The fourth proportional to 28,414.90, 42,607.29 and 12,613.06 is: 18,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,414.90 : 42,607.29 = 12,613.06 : x
  2. Step 2: Convert to fraction form
    28,414.90/42,607.29 = 12,613.06/x
  3. Step 3: Cross multiply
    28,414.90x = 42,607.29 × 12,613.06
  4. Step 4: Simplify right side
    28,414.90x = 537,408,092.17
  5. Step 5: Solve for x
    x = 537,408,092.17/28,414.90
  6. Step 6: Final answer
    x = 18,912.90

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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.