Home / 19,487.30-29,231.02-5,447.24

Finding the Fourth Proportional to 19,487.30, 29,231.02 and 5,447.24

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Solution

The fourth proportional to 19,487.30, 29,231.02 and 5,447.24 is: 8,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.30 : 29,231.02 = 5,447.24 : x
  2. Step 2: Convert to fraction form
    19,487.30/29,231.02 = 5,447.24/x
  3. Step 3: Cross multiply
    19,487.30x = 29,231.02 × 5,447.24
  4. Step 4: Simplify right side
    19,487.30x = 159,228,381.38
  5. Step 5: Solve for x
    x = 159,228,381.38/19,487.30
  6. Step 6: Final answer
    x = 8,170.88

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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.