Home / 20,726.28-31,098.60-10,863.22

Finding the Fourth Proportional to 20,726.28, 31,098.60 and 10,863.22

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Solution

The fourth proportional to 20,726.28, 31,098.60 and 10,863.22 is: 16,299.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.28 : 31,098.60 = 10,863.22 : x
  2. Step 2: Convert to fraction form
    20,726.28/31,098.60 = 10,863.22/x
  3. Step 3: Cross multiply
    20,726.28x = 31,098.60 × 10,863.22
  4. Step 4: Simplify right side
    20,726.28x = 337,830,933.49
  5. Step 5: Solve for x
    x = 337,830,933.49/20,726.28
  6. Step 6: Final answer
    x = 16,299.64

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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.