Home / 20,213.24-30,263.88-10,331.24

Finding the Fourth Proportional to 20,213.24, 30,263.88 and 10,331.24

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Solution

The fourth proportional to 20,213.24, 30,263.88 and 10,331.24 is: 15,468.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.24 : 30,263.88 = 10,331.24 : x
  2. Step 2: Convert to fraction form
    20,213.24/30,263.88 = 10,331.24/x
  3. Step 3: Cross multiply
    20,213.24x = 30,263.88 × 10,331.24
  4. Step 4: Simplify right side
    20,213.24x = 312,663,407.61
  5. Step 5: Solve for x
    x = 312,663,407.61/20,213.24
  6. Step 6: Final answer
    x = 15,468.25

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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.