Home / 27,692.87-38,248.02-20,172.83

Finding the Fourth Proportional to 27,692.87, 38,248.02 and 20,172.83

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Solution

The fourth proportional to 27,692.87, 38,248.02 and 20,172.83 is: 27,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,692.87 : 38,248.02 = 20,172.83 : x
  2. Step 2: Convert to fraction form
    27,692.87/38,248.02 = 20,172.83/x
  3. Step 3: Cross multiply
    27,692.87x = 38,248.02 × 20,172.83
  4. Step 4: Simplify right side
    27,692.87x = 771,570,614.06
  5. Step 5: Solve for x
    x = 771,570,614.06/27,692.87
  6. Step 6: Final answer
    x = 27,861.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.