Home / 29,267.75-40,389.49-15,839

Finding the Fourth Proportional to 29,267.75, 40,389.49 and 15,839

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Solution

The fourth proportional to 29,267.75, 40,389.49 and 15,839 is: 21,857.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,267.75 : 40,389.49 = 15,839 : x
  2. Step 2: Convert to fraction form
    29,267.75/40,389.49 = 15,839/x
  3. Step 3: Cross multiply
    29,267.75x = 40,389.49 × 15,839
  4. Step 4: Simplify right side
    29,267.75x = 639,729,132.11
  5. Step 5: Solve for x
    x = 639,729,132.11/29,267.75
  6. Step 6: Final answer
    x = 21,857.82

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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.