Home / 28,311.25-42,473.42-8,321.04

Finding the Fourth Proportional to 28,311.25, 42,473.42 and 8,321.04

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Solution

The fourth proportional to 28,311.25, 42,473.42 and 8,321.04 is: 12,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311.25 : 42,473.42 = 8,321.04 : x
  2. Step 2: Convert to fraction form
    28,311.25/42,473.42 = 8,321.04/x
  3. Step 3: Cross multiply
    28,311.25x = 42,473.42 × 8,321.04
  4. Step 4: Simplify right side
    28,311.25x = 353,423,026.76
  5. Step 5: Solve for x
    x = 353,423,026.76/28,311.25
  6. Step 6: Final answer
    x = 12,483.48

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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.