Home / 29,267.75-40,389.78-15,839.28

Finding the Fourth Proportional to 29,267.75, 40,389.78 and 15,839.28

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Solution

The fourth proportional to 29,267.75, 40,389.78 and 15,839.28 is: 21,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,267.75 : 40,389.78 = 15,839.28 : x
  2. Step 2: Convert to fraction form
    29,267.75/40,389.78 = 15,839.28/x
  3. Step 3: Cross multiply
    29,267.75x = 40,389.78 × 15,839.28
  4. Step 4: Simplify right side
    29,267.75x = 639,745,034.56
  5. Step 5: Solve for x
    x = 639,745,034.56/29,267.75
  6. Step 6: Final answer
    x = 21,858.36

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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.