Home / 31,772.70-43,757.55-31,083.93

Finding the Fourth Proportional to 31,772.70, 43,757.55 and 31,083.93

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Solution

The fourth proportional to 31,772.70, 43,757.55 and 31,083.93 is: 42,808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,772.70 : 43,757.55 = 31,083.93 : x
  2. Step 2: Convert to fraction form
    31,772.70/43,757.55 = 31,083.93/x
  3. Step 3: Cross multiply
    31,772.70x = 43,757.55 × 31,083.93
  4. Step 4: Simplify right side
    31,772.70x = 1,360,156,621.17
  5. Step 5: Solve for x
    x = 1,360,156,621.17/31,772.70
  6. Step 6: Final answer
    x = 42,808.97

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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.