Home / 28,063.08-42,082.23-10,520.61

Finding the Fourth Proportional to 28,063.08, 42,082.23 and 10,520.61

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Solution

The fourth proportional to 28,063.08, 42,082.23 and 10,520.61 is: 15,776.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.08 : 42,082.23 = 10,520.61 : x
  2. Step 2: Convert to fraction form
    28,063.08/42,082.23 = 10,520.61/x
  3. Step 3: Cross multiply
    28,063.08x = 42,082.23 × 10,520.61
  4. Step 4: Simplify right side
    28,063.08x = 442,730,729.76
  5. Step 5: Solve for x
    x = 442,730,729.76/28,063.08
  6. Step 6: Final answer
    x = 15,776.27

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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.