Home / 38,116.31-57,176.08-11,820.47

Finding the Fourth Proportional to 38,116.31, 57,176.08 and 11,820.47

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Solution

The fourth proportional to 38,116.31, 57,176.08 and 11,820.47 is: 17,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,116.31 : 57,176.08 = 11,820.47 : x
  2. Step 2: Convert to fraction form
    38,116.31/57,176.08 = 11,820.47/x
  3. Step 3: Cross multiply
    38,116.31x = 57,176.08 × 11,820.47
  4. Step 4: Simplify right side
    38,116.31x = 675,847,822.93
  5. Step 5: Solve for x
    x = 675,847,822.93/38,116.31
  6. Step 6: Final answer
    x = 17,731.20

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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.