Home / 42,613.78-63,920.63-11,449.03

Finding the Fourth Proportional to 42,613.78, 63,920.63 and 11,449.03

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Solution

The fourth proportional to 42,613.78, 63,920.63 and 11,449.03 is: 17,173.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,613.78 : 63,920.63 = 11,449.03 : x
  2. Step 2: Convert to fraction form
    42,613.78/63,920.63 = 11,449.03/x
  3. Step 3: Cross multiply
    42,613.78x = 63,920.63 × 11,449.03
  4. Step 4: Simplify right side
    42,613.78x = 731,829,210.49
  5. Step 5: Solve for x
    x = 731,829,210.49/42,613.78
  6. Step 6: Final answer
    x = 17,173.53

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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.