Home / 21,159.16-29,185.67-13,593.56

Finding the Fourth Proportional to 21,159.16, 29,185.67 and 13,593.56

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Solution

The fourth proportional to 21,159.16, 29,185.67 and 13,593.56 is: 18,750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.16 : 29,185.67 = 13,593.56 : x
  2. Step 2: Convert to fraction form
    21,159.16/29,185.67 = 13,593.56/x
  3. Step 3: Cross multiply
    21,159.16x = 29,185.67 × 13,593.56
  4. Step 4: Simplify right side
    21,159.16x = 396,737,044.34
  5. Step 5: Solve for x
    x = 396,737,044.34/21,159.16
  6. Step 6: Final answer
    x = 18,750.13

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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.