Home / 38,604.08-57,915.12-12,306.80

Finding the Fourth Proportional to 38,604.08, 57,915.12 and 12,306.80

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Solution

The fourth proportional to 38,604.08, 57,915.12 and 12,306.80 is: 18,463.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,604.08 : 57,915.12 = 12,306.80 : x
  2. Step 2: Convert to fraction form
    38,604.08/57,915.12 = 12,306.80/x
  3. Step 3: Cross multiply
    38,604.08x = 57,915.12 × 12,306.80
  4. Step 4: Simplify right side
    38,604.08x = 712,749,798.82
  5. Step 5: Solve for x
    x = 712,749,798.82/38,604.08
  6. Step 6: Final answer
    x = 18,463.07

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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.