Home / 38,449.37-57,680.19-12,160.28

Finding the Fourth Proportional to 38,449.37, 57,680.19 and 12,160.28

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Solution

The fourth proportional to 38,449.37, 57,680.19 and 12,160.28 is: 18,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,449.37 : 57,680.19 = 12,160.28 : x
  2. Step 2: Convert to fraction form
    38,449.37/57,680.19 = 12,160.28/x
  3. Step 3: Cross multiply
    38,449.37x = 57,680.19 × 12,160.28
  4. Step 4: Simplify right side
    38,449.37x = 701,406,972.45
  5. Step 5: Solve for x
    x = 701,406,972.45/38,449.37
  6. Step 6: Final answer
    x = 18,242.36

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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.