Home / 38,557.80-57,836.70-12,265.20

Finding the Fourth Proportional to 38,557.80, 57,836.70 and 12,265.20

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Solution

The fourth proportional to 38,557.80, 57,836.70 and 12,265.20 is: 18,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,557.80 : 57,836.70 = 12,265.20 : x
  2. Step 2: Convert to fraction form
    38,557.80/57,836.70 = 12,265.20/x
  3. Step 3: Cross multiply
    38,557.80x = 57,836.70 × 12,265.20
  4. Step 4: Simplify right side
    38,557.80x = 709,378,692.84
  5. Step 5: Solve for x
    x = 709,378,692.84/38,557.80
  6. Step 6: Final answer
    x = 18,397.80

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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.