Home / 31,581.10-43,596.24-20,254.90

Finding the Fourth Proportional to 31,581.10, 43,596.24 and 20,254.90

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Solution

The fourth proportional to 31,581.10, 43,596.24 and 20,254.90 is: 27,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,581.10 : 43,596.24 = 20,254.90 : x
  2. Step 2: Convert to fraction form
    31,581.10/43,596.24 = 20,254.90/x
  3. Step 3: Cross multiply
    31,581.10x = 43,596.24 × 20,254.90
  4. Step 4: Simplify right side
    31,581.10x = 883,037,481.58
  5. Step 5: Solve for x
    x = 883,037,481.58/31,581.10
  6. Step 6: Final answer
    x = 27,960.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.