Home / 38,556.48-57,830.40-12,259.20

Finding the Fourth Proportional to 38,556.48, 57,830.40 and 12,259.20

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Solution

The fourth proportional to 38,556.48, 57,830.40 and 12,259.20 is: 18,387.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,556.48 : 57,830.40 = 12,259.20 : x
  2. Step 2: Convert to fraction form
    38,556.48/57,830.40 = 12,259.20/x
  3. Step 3: Cross multiply
    38,556.48x = 57,830.40 × 12,259.20
  4. Step 4: Simplify right side
    38,556.48x = 708,954,439.68
  5. Step 5: Solve for x
    x = 708,954,439.68/38,556.48
  6. Step 6: Final answer
    x = 18,387.43

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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.