Home / 38,772.91-58,122.46-12,459.21

Finding the Fourth Proportional to 38,772.91, 58,122.46 and 12,459.21

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Solution

The fourth proportional to 38,772.91, 58,122.46 and 12,459.21 is: 18,676.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,772.91 : 58,122.46 = 12,459.21 : x
  2. Step 2: Convert to fraction form
    38,772.91/58,122.46 = 12,459.21/x
  3. Step 3: Cross multiply
    38,772.91x = 58,122.46 × 12,459.21
  4. Step 4: Simplify right side
    38,772.91x = 724,159,934.86
  5. Step 5: Solve for x
    x = 724,159,934.86/38,772.91
  6. Step 6: Final answer
    x = 18,676.96

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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.