Home / 20,263.24-30,338.88-10,381.24

Finding the Fourth Proportional to 20,263.24, 30,338.88 and 10,381.24

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Solution

The fourth proportional to 20,263.24, 30,338.88 and 10,381.24 is: 15,543.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.24 : 30,338.88 = 10,381.24 : x
  2. Step 2: Convert to fraction form
    20,263.24/30,338.88 = 10,381.24/x
  3. Step 3: Cross multiply
    20,263.24x = 30,338.88 × 10,381.24
  4. Step 4: Simplify right side
    20,263.24x = 314,955,194.61
  5. Step 5: Solve for x
    x = 314,955,194.61/20,263.24
  6. Step 6: Final answer
    x = 15,543.18

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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.