Home / 38,308.16-57,343.44-20,734.40

Finding the Fourth Proportional to 38,308.16, 57,343.44 and 20,734.40

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Solution

The fourth proportional to 38,308.16, 57,343.44 and 20,734.40 is: 31,037.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,308.16 : 57,343.44 = 20,734.40 : x
  2. Step 2: Convert to fraction form
    38,308.16/57,343.44 = 20,734.40/x
  3. Step 3: Cross multiply
    38,308.16x = 57,343.44 × 20,734.40
  4. Step 4: Simplify right side
    38,308.16x = 1,188,981,822.34
  5. Step 5: Solve for x
    x = 1,188,981,822.34/38,308.16
  6. Step 6: Final answer
    x = 31,037.30

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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.