Home / 40,787.21-56,286.90-22,881.15

Finding the Fourth Proportional to 40,787.21, 56,286.90 and 22,881.15

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Solution

The fourth proportional to 40,787.21, 56,286.90 and 22,881.15 is: 31,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,787.21 : 56,286.90 = 22,881.15 : x
  2. Step 2: Convert to fraction form
    40,787.21/56,286.90 = 22,881.15/x
  3. Step 3: Cross multiply
    40,787.21x = 56,286.90 × 22,881.15
  4. Step 4: Simplify right side
    40,787.21x = 1,287,909,001.94
  5. Step 5: Solve for x
    x = 1,287,909,001.94/40,787.21
  6. Step 6: Final answer
    x = 31,576.29

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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.