Home / 31,836.64-47,764.96-13,125.49

Finding the Fourth Proportional to 31,836.64, 47,764.96 and 13,125.49

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Solution

The fourth proportional to 31,836.64, 47,764.96 and 13,125.49 is: 19,692.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.64 : 47,764.96 = 13,125.49 : x
  2. Step 2: Convert to fraction form
    31,836.64/47,764.96 = 13,125.49/x
  3. Step 3: Cross multiply
    31,836.64x = 47,764.96 × 13,125.49
  4. Step 4: Simplify right side
    31,836.64x = 626,938,463.80
  5. Step 5: Solve for x
    x = 626,938,463.80/31,836.64
  6. Step 6: Final answer
    x = 19,692.36

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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.