Home / 31,761.15-43,835.90-18,330.14

Finding the Fourth Proportional to 31,761.15, 43,835.90 and 18,330.14

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Solution

The fourth proportional to 31,761.15, 43,835.90 and 18,330.14 is: 25,298.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,761.15 : 43,835.90 = 18,330.14 : x
  2. Step 2: Convert to fraction form
    31,761.15/43,835.90 = 18,330.14/x
  3. Step 3: Cross multiply
    31,761.15x = 43,835.90 × 18,330.14
  4. Step 4: Simplify right side
    31,761.15x = 803,517,873.20
  5. Step 5: Solve for x
    x = 803,517,873.20/31,761.15
  6. Step 6: Final answer
    x = 25,298.77

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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.