Home / 21,136.59-29,167.28-11,574.54

Finding the Fourth Proportional to 21,136.59, 29,167.28 and 11,574.54

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Solution

The fourth proportional to 21,136.59, 29,167.28 and 11,574.54 is: 15,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.59 : 29,167.28 = 11,574.54 : x
  2. Step 2: Convert to fraction form
    21,136.59/29,167.28 = 11,574.54/x
  3. Step 3: Cross multiply
    21,136.59x = 29,167.28 × 11,574.54
  4. Step 4: Simplify right side
    21,136.59x = 337,597,791.18
  5. Step 5: Solve for x
    x = 337,597,791.18/21,136.59
  6. Step 6: Final answer
    x = 15,972.20

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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.