Home / 21,724.56-29,983.12-13,767.52

Finding the Fourth Proportional to 21,724.56, 29,983.12 and 13,767.52

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Solution

The fourth proportional to 21,724.56, 29,983.12 and 13,767.52 is: 19,001.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.56 : 29,983.12 = 13,767.52 : x
  2. Step 2: Convert to fraction form
    21,724.56/29,983.12 = 13,767.52/x
  3. Step 3: Cross multiply
    21,724.56x = 29,983.12 × 13,767.52
  4. Step 4: Simplify right side
    21,724.56x = 412,793,204.26
  5. Step 5: Solve for x
    x = 412,793,204.26/21,724.56
  6. Step 6: Final answer
    x = 19,001.22

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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.