Home / 38,915.01-58,380.72-12,617.70

Finding the Fourth Proportional to 38,915.01, 58,380.72 and 12,617.70

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Solution

The fourth proportional to 38,915.01, 58,380.72 and 12,617.70 is: 18,929.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,915.01 : 58,380.72 = 12,617.70 : x
  2. Step 2: Convert to fraction form
    38,915.01/58,380.72 = 12,617.70/x
  3. Step 3: Cross multiply
    38,915.01x = 58,380.72 × 12,617.70
  4. Step 4: Simplify right side
    38,915.01x = 736,630,613.90
  5. Step 5: Solve for x
    x = 736,630,613.90/38,915.01
  6. Step 6: Final answer
    x = 18,929.21

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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.