Home / 20,726.38-31,063.56-8,866.24

Finding the Fourth Proportional to 20,726.38, 31,063.56 and 8,866.24

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Solution

The fourth proportional to 20,726.38, 31,063.56 and 8,866.24 is: 13,288.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.38 : 31,063.56 = 8,866.24 : x
  2. Step 2: Convert to fraction form
    20,726.38/31,063.56 = 8,866.24/x
  3. Step 3: Cross multiply
    20,726.38x = 31,063.56 × 8,866.24
  4. Step 4: Simplify right side
    20,726.38x = 275,416,978.21
  5. Step 5: Solve for x
    x = 275,416,978.21/20,726.38
  6. Step 6: Final answer
    x = 13,288.23

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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.