Home / 38,465.20-57,692.40-12,172.60

Finding the Fourth Proportional to 38,465.20, 57,692.40 and 12,172.60

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Solution

The fourth proportional to 38,465.20, 57,692.40 and 12,172.60 is: 18,257.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,465.20 : 57,692.40 = 12,172.60 : x
  2. Step 2: Convert to fraction form
    38,465.20/57,692.40 = 12,172.60/x
  3. Step 3: Cross multiply
    38,465.20x = 57,692.40 × 12,172.60
  4. Step 4: Simplify right side
    38,465.20x = 702,266,508.24
  5. Step 5: Solve for x
    x = 702,266,508.24/38,465.20
  6. Step 6: Final answer
    x = 18,257.19

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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.