Home / 26,885.30-40,328.15-15,195.78

Finding the Fourth Proportional to 26,885.30, 40,328.15 and 15,195.78

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Solution

The fourth proportional to 26,885.30, 40,328.15 and 15,195.78 is: 22,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,885.30 : 40,328.15 = 15,195.78 : x
  2. Step 2: Convert to fraction form
    26,885.30/40,328.15 = 15,195.78/x
  3. Step 3: Cross multiply
    26,885.30x = 40,328.15 × 15,195.78
  4. Step 4: Simplify right side
    26,885.30x = 612,817,619.23
  5. Step 5: Solve for x
    x = 612,817,619.23/26,885.30
  6. Step 6: Final answer
    x = 22,793.78

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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.