Home / 38,618.24-57,920.20-13,658.49

Finding the Fourth Proportional to 38,618.24, 57,920.20 and 13,658.49

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Solution

The fourth proportional to 38,618.24, 57,920.20 and 13,658.49 is: 20,485.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,618.24 : 57,920.20 = 13,658.49 : x
  2. Step 2: Convert to fraction form
    38,618.24/57,920.20 = 13,658.49/x
  3. Step 3: Cross multiply
    38,618.24x = 57,920.20 × 13,658.49
  4. Step 4: Simplify right side
    38,618.24x = 791,102,438.35
  5. Step 5: Solve for x
    x = 791,102,438.35/38,618.24
  6. Step 6: Final answer
    x = 20,485.20

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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.