Home / 38,690.20-58,043.82-12,397.60

Finding the Fourth Proportional to 38,690.20, 58,043.82 and 12,397.60

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Solution

The fourth proportional to 38,690.20, 58,043.82 and 12,397.60 is: 18,599.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,690.20 : 58,043.82 = 12,397.60 : x
  2. Step 2: Convert to fraction form
    38,690.20/58,043.82 = 12,397.60/x
  3. Step 3: Cross multiply
    38,690.20x = 58,043.82 × 12,397.60
  4. Step 4: Simplify right side
    38,690.20x = 719,603,772.61
  5. Step 5: Solve for x
    x = 719,603,772.61/38,690.20
  6. Step 6: Final answer
    x = 18,599.12

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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.