Home / 28,247.90-42,372.12-8,526.62

Finding the Fourth Proportional to 28,247.90, 42,372.12 and 8,526.62

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Solution

The fourth proportional to 28,247.90, 42,372.12 and 8,526.62 is: 12,790.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.90 : 42,372.12 = 8,526.62 : x
  2. Step 2: Convert to fraction form
    28,247.90/42,372.12 = 8,526.62/x
  3. Step 3: Cross multiply
    28,247.90x = 42,372.12 × 8,526.62
  4. Step 4: Simplify right side
    28,247.90x = 361,290,965.83
  5. Step 5: Solve for x
    x = 361,290,965.83/28,247.90
  6. Step 6: Final answer
    x = 12,790.01

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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.