Home / 21,255.24-31,882.92-10,159.41

Finding the Fourth Proportional to 21,255.24, 31,882.92 and 10,159.41

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Solution

The fourth proportional to 21,255.24, 31,882.92 and 10,159.41 is: 15,239.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,255.24 : 31,882.92 = 10,159.41 : x
  2. Step 2: Convert to fraction form
    21,255.24/31,882.92 = 10,159.41/x
  3. Step 3: Cross multiply
    21,255.24x = 31,882.92 × 10,159.41
  4. Step 4: Simplify right side
    21,255.24x = 323,911,656.28
  5. Step 5: Solve for x
    x = 323,911,656.28/21,255.24
  6. Step 6: Final answer
    x = 15,239.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.