Home / 21,464.73-29,617.65-13,517.55

Finding the Fourth Proportional to 21,464.73, 29,617.65 and 13,517.55

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Solution

The fourth proportional to 21,464.73, 29,617.65 and 13,517.55 is: 18,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.73 : 29,617.65 = 13,517.55 : x
  2. Step 2: Convert to fraction form
    21,464.73/29,617.65 = 13,517.55/x
  3. Step 3: Cross multiply
    21,464.73x = 29,617.65 × 13,517.55
  4. Step 4: Simplify right side
    21,464.73x = 400,358,064.76
  5. Step 5: Solve for x
    x = 400,358,064.76/21,464.73
  6. Step 6: Final answer
    x = 18,651.90

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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.