Home / 31,818.08-47,747.22-17,787.31

Finding the Fourth Proportional to 31,818.08, 47,747.22 and 17,787.31

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Solution

The fourth proportional to 31,818.08, 47,747.22 and 17,787.31 is: 26,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,818.08 : 47,747.22 = 17,787.31 : x
  2. Step 2: Convert to fraction form
    31,818.08/47,747.22 = 17,787.31/x
  3. Step 3: Cross multiply
    31,818.08x = 47,747.22 × 17,787.31
  4. Step 4: Simplify right side
    31,818.08x = 849,294,786.34
  5. Step 5: Solve for x
    x = 849,294,786.34/31,818.08
  6. Step 6: Final answer
    x = 26,692.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.