Home / 21,250.52-31,882.70-10,158.06

Finding the Fourth Proportional to 21,250.52, 31,882.70 and 10,158.06

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Solution

The fourth proportional to 21,250.52, 31,882.70 and 10,158.06 is: 15,240.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.52 : 31,882.70 = 10,158.06 : x
  2. Step 2: Convert to fraction form
    21,250.52/31,882.70 = 10,158.06/x
  3. Step 3: Cross multiply
    21,250.52x = 31,882.70 × 10,158.06
  4. Step 4: Simplify right side
    21,250.52x = 323,866,532.65
  5. Step 5: Solve for x
    x = 323,866,532.65/21,250.52
  6. Step 6: Final answer
    x = 15,240.40

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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.