Home / 29,267.91-40,389.62-15,839.15

Finding the Fourth Proportional to 29,267.91, 40,389.62 and 15,839.15

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Solution

The fourth proportional to 29,267.91, 40,389.62 and 15,839.15 is: 21,857.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,267.91 : 40,389.62 = 15,839.15 : x
  2. Step 2: Convert to fraction form
    29,267.91/40,389.62 = 15,839.15/x
  3. Step 3: Cross multiply
    29,267.91x = 40,389.62 × 15,839.15
  4. Step 4: Simplify right side
    29,267.91x = 639,736,968.48
  5. Step 5: Solve for x
    x = 639,736,968.48/29,267.91
  6. Step 6: Final answer
    x = 21,857.97

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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.