Home / 22,682.96-31,290.76-15,613.20

Finding the Fourth Proportional to 22,682.96, 31,290.76 and 15,613.20

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Solution

The fourth proportional to 22,682.96, 31,290.76 and 15,613.20 is: 21,538.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,682.96 : 31,290.76 = 15,613.20 : x
  2. Step 2: Convert to fraction form
    22,682.96/31,290.76 = 15,613.20/x
  3. Step 3: Cross multiply
    22,682.96x = 31,290.76 × 15,613.20
  4. Step 4: Simplify right side
    22,682.96x = 488,548,894.03
  5. Step 5: Solve for x
    x = 488,548,894.03/22,682.96
  6. Step 6: Final answer
    x = 21,538.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.