Home / 38,242.40-57,363.60-28,911.20

Finding the Fourth Proportional to 38,242.40, 57,363.60 and 28,911.20

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Solution

The fourth proportional to 38,242.40, 57,363.60 and 28,911.20 is: 43,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,242.40 : 57,363.60 = 28,911.20 : x
  2. Step 2: Convert to fraction form
    38,242.40/57,363.60 = 28,911.20/x
  3. Step 3: Cross multiply
    38,242.40x = 57,363.60 × 28,911.20
  4. Step 4: Simplify right side
    38,242.40x = 1,658,450,512.32
  5. Step 5: Solve for x
    x = 1,658,450,512.32/38,242.40
  6. Step 6: Final answer
    x = 43,366.80

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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.