Home / 31,385.27-47,077.98-7,692.92

Finding the Fourth Proportional to 31,385.27, 47,077.98 and 7,692.92

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Solution

The fourth proportional to 31,385.27, 47,077.98 and 7,692.92 is: 11,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.27 : 47,077.98 = 7,692.92 : x
  2. Step 2: Convert to fraction form
    31,385.27/47,077.98 = 7,692.92/x
  3. Step 3: Cross multiply
    31,385.27x = 47,077.98 × 7,692.92
  4. Step 4: Simplify right side
    31,385.27x = 362,167,375.93
  5. Step 5: Solve for x
    x = 362,167,375.93/31,385.27
  6. Step 6: Final answer
    x = 11,539.41

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1.5x scale

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.