Home / 31,432.84-43,111.56-27,889.90

Finding the Fourth Proportional to 31,432.84, 43,111.56 and 27,889.90

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Solution

The fourth proportional to 31,432.84, 43,111.56 and 27,889.90 is: 38,252.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.84 : 43,111.56 = 27,889.90 : x
  2. Step 2: Convert to fraction form
    31,432.84/43,111.56 = 27,889.90/x
  3. Step 3: Cross multiply
    31,432.84x = 43,111.56 × 27,889.90
  4. Step 4: Simplify right side
    31,432.84x = 1,202,377,097.24
  5. Step 5: Solve for x
    x = 1,202,377,097.24/31,432.84
  6. Step 6: Final answer
    x = 38,252.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.