Home / 38,497.60-57,746.40-18,788.80

Finding the Fourth Proportional to 38,497.60, 57,746.40 and 18,788.80

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Solution

The fourth proportional to 38,497.60, 57,746.40 and 18,788.80 is: 28,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,497.60 : 57,746.40 = 18,788.80 : x
  2. Step 2: Convert to fraction form
    38,497.60/57,746.40 = 18,788.80/x
  3. Step 3: Cross multiply
    38,497.60x = 57,746.40 × 18,788.80
  4. Step 4: Simplify right side
    38,497.60x = 1,084,985,560.32
  5. Step 5: Solve for x
    x = 1,084,985,560.32/38,497.60
  6. Step 6: Final answer
    x = 28,183.20

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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.