Home / 42,613.79-63,920.63-11,449.04

Finding the Fourth Proportional to 42,613.79, 63,920.63 and 11,449.04

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Solution

The fourth proportional to 42,613.79, 63,920.63 and 11,449.04 is: 17,173.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,613.79 : 63,920.63 = 11,449.04 : x
  2. Step 2: Convert to fraction form
    42,613.79/63,920.63 = 11,449.04/x
  3. Step 3: Cross multiply
    42,613.79x = 63,920.63 × 11,449.04
  4. Step 4: Simplify right side
    42,613.79x = 731,829,472.85
  5. Step 5: Solve for x
    x = 731,829,472.85/42,613.79
  6. Step 6: Final answer
    x = 17,173.54

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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.