Home / 31,877.13-47,821.16-9,692.75

Finding the Fourth Proportional to 31,877.13, 47,821.16 and 9,692.75

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Solution

The fourth proportional to 31,877.13, 47,821.16 and 9,692.75 is: 14,540.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,877.13 : 47,821.16 = 9,692.75 : x
  2. Step 2: Convert to fraction form
    31,877.13/47,821.16 = 9,692.75/x
  3. Step 3: Cross multiply
    31,877.13x = 47,821.16 × 9,692.75
  4. Step 4: Simplify right side
    31,877.13x = 463,518,548.59
  5. Step 5: Solve for x
    x = 463,518,548.59/31,877.13
  6. Step 6: Final answer
    x = 14,540.79

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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.