Home / 21,158.20-31,734.89-5,577.04

Finding the Fourth Proportional to 21,158.20, 31,734.89 and 5,577.04

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Solution

The fourth proportional to 21,158.20, 31,734.89 and 5,577.04 is: 8,364.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,158.20 : 31,734.89 = 5,577.04 : x
  2. Step 2: Convert to fraction form
    21,158.20/31,734.89 = 5,577.04/x
  3. Step 3: Cross multiply
    21,158.20x = 31,734.89 × 5,577.04
  4. Step 4: Simplify right side
    21,158.20x = 176,986,750.93
  5. Step 5: Solve for x
    x = 176,986,750.93/21,158.20
  6. Step 6: Final answer
    x = 8,364.92

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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.