Home / 40,692.12-61,031.85-15,743.70

Finding the Fourth Proportional to 40,692.12, 61,031.85 and 15,743.70

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Solution

The fourth proportional to 40,692.12, 61,031.85 and 15,743.70 is: 23,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,692.12 : 61,031.85 = 15,743.70 : x
  2. Step 2: Convert to fraction form
    40,692.12/61,031.85 = 15,743.70/x
  3. Step 3: Cross multiply
    40,692.12x = 61,031.85 × 15,743.70
  4. Step 4: Simplify right side
    40,692.12x = 960,867,136.85
  5. Step 5: Solve for x
    x = 960,867,136.85/40,692.12
  6. Step 6: Final answer
    x = 23,613.10

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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.