Home / 38,453.47-57,679.83-12,158.21

Finding the Fourth Proportional to 38,453.47, 57,679.83 and 12,158.21

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Solution

The fourth proportional to 38,453.47, 57,679.83 and 12,158.21 is: 18,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,453.47 : 57,679.83 = 12,158.21 : x
  2. Step 2: Convert to fraction form
    38,453.47/57,679.83 = 12,158.21/x
  3. Step 3: Cross multiply
    38,453.47x = 57,679.83 × 12,158.21
  4. Step 4: Simplify right side
    38,453.47x = 701,283,630.10
  5. Step 5: Solve for x
    x = 701,283,630.10/38,453.47
  6. Step 6: Final answer
    x = 18,237.20

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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.