Home / 38,478.40-57,717.60-35,627.20

Finding the Fourth Proportional to 38,478.40, 57,717.60 and 35,627.20

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Solution

The fourth proportional to 38,478.40, 57,717.60 and 35,627.20 is: 53,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.40 : 57,717.60 = 35,627.20 : x
  2. Step 2: Convert to fraction form
    38,478.40/57,717.60 = 35,627.20/x
  3. Step 3: Cross multiply
    38,478.40x = 57,717.60 × 35,627.20
  4. Step 4: Simplify right side
    38,478.40x = 2,056,316,478.72
  5. Step 5: Solve for x
    x = 2,056,316,478.72/38,478.40
  6. Step 6: Final answer
    x = 53,440.80

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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.