Home / 40,411.36-55,787.18-31,316.17

Finding the Fourth Proportional to 40,411.36, 55,787.18 and 31,316.17

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Solution

The fourth proportional to 40,411.36, 55,787.18 and 31,316.17 is: 43,231.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,411.36 : 55,787.18 = 31,316.17 : x
  2. Step 2: Convert to fraction form
    40,411.36/55,787.18 = 31,316.17/x
  3. Step 3: Cross multiply
    40,411.36x = 55,787.18 × 31,316.17
  4. Step 4: Simplify right side
    40,411.36x = 1,747,040,797.41
  5. Step 5: Solve for x
    x = 1,747,040,797.41/40,411.36
  6. Step 6: Final answer
    x = 43,231.43

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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.