Home / 21,147.48-29,185.92-14,770.08

Finding the Fourth Proportional to 21,147.48, 29,185.92 and 14,770.08

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Solution

The fourth proportional to 21,147.48, 29,185.92 and 14,770.08 is: 20,384.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,147.48 : 29,185.92 = 14,770.08 : x
  2. Step 2: Convert to fraction form
    21,147.48/29,185.92 = 14,770.08/x
  3. Step 3: Cross multiply
    21,147.48x = 29,185.92 × 14,770.08
  4. Step 4: Simplify right side
    21,147.48x = 431,078,373.27
  5. Step 5: Solve for x
    x = 431,078,373.27/21,147.48
  6. Step 6: Final answer
    x = 20,384.38

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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.