Home / 38,279.20-57,418.80-10,577.20

Finding the Fourth Proportional to 38,279.20, 57,418.80 and 10,577.20

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Solution

The fourth proportional to 38,279.20, 57,418.80 and 10,577.20 is: 15,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,279.20 : 57,418.80 = 10,577.20 : x
  2. Step 2: Convert to fraction form
    38,279.20/57,418.80 = 10,577.20/x
  3. Step 3: Cross multiply
    38,279.20x = 57,418.80 × 10,577.20
  4. Step 4: Simplify right side
    38,279.20x = 607,330,131.36
  5. Step 5: Solve for x
    x = 607,330,131.36/38,279.20
  6. Step 6: Final answer
    x = 15,865.80

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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.