Home / 38,692.92-57,938.58-21,126.72

Finding the Fourth Proportional to 38,692.92, 57,938.58 and 21,126.72

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Solution

The fourth proportional to 38,692.92, 57,938.58 and 21,126.72 is: 31,635.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,692.92 : 57,938.58 = 21,126.72 : x
  2. Step 2: Convert to fraction form
    38,692.92/57,938.58 = 21,126.72/x
  3. Step 3: Cross multiply
    38,692.92x = 57,938.58 × 21,126.72
  4. Step 4: Simplify right side
    38,692.92x = 1,224,052,156.86
  5. Step 5: Solve for x
    x = 1,224,052,156.86/38,692.92
  6. Step 6: Final answer
    x = 31,635.04

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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.