Home / 31,787.06-43,864.66-17,639.78

Finding the Fourth Proportional to 31,787.06, 43,864.66 and 17,639.78

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Solution

The fourth proportional to 31,787.06, 43,864.66 and 17,639.78 is: 24,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,787.06 : 43,864.66 = 17,639.78 : x
  2. Step 2: Convert to fraction form
    31,787.06/43,864.66 = 17,639.78/x
  3. Step 3: Cross multiply
    31,787.06x = 43,864.66 × 17,639.78
  4. Step 4: Simplify right side
    31,787.06x = 773,762,688.75
  5. Step 5: Solve for x
    x = 773,762,688.75/31,787.06
  6. Step 6: Final answer
    x = 24,342.07

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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.