Home / 28,447.20-42,620.16-17,348.16

Finding the Fourth Proportional to 28,447.20, 42,620.16 and 17,348.16

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Solution

The fourth proportional to 28,447.20, 42,620.16 and 17,348.16 is: 25,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447.20 : 42,620.16 = 17,348.16 : x
  2. Step 2: Convert to fraction form
    28,447.20/42,620.16 = 17,348.16/x
  3. Step 3: Cross multiply
    28,447.20x = 42,620.16 × 17,348.16
  4. Step 4: Simplify right side
    28,447.20x = 739,381,354.91
  5. Step 5: Solve for x
    x = 739,381,354.91/28,447.20
  6. Step 6: Final answer
    x = 25,991.36

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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.