Home / 21,149.37-29,182.28-13,593.15

Finding the Fourth Proportional to 21,149.37, 29,182.28 and 13,593.15

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Solution

The fourth proportional to 21,149.37, 29,182.28 and 13,593.15 is: 18,756.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,149.37 : 29,182.28 = 13,593.15 : x
  2. Step 2: Convert to fraction form
    21,149.37/29,182.28 = 13,593.15/x
  3. Step 3: Cross multiply
    21,149.37x = 29,182.28 × 13,593.15
  4. Step 4: Simplify right side
    21,149.37x = 396,679,041.42
  5. Step 5: Solve for x
    x = 396,679,041.42/21,149.37
  6. Step 6: Final answer
    x = 18,756.07

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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.