Home / 38,111.20-57,166.80-10,409.20

Finding the Fourth Proportional to 38,111.20, 57,166.80 and 10,409.20

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Solution

The fourth proportional to 38,111.20, 57,166.80 and 10,409.20 is: 15,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,111.20 : 57,166.80 = 10,409.20 : x
  2. Step 2: Convert to fraction form
    38,111.20/57,166.80 = 10,409.20/x
  3. Step 3: Cross multiply
    38,111.20x = 57,166.80 × 10,409.20
  4. Step 4: Simplify right side
    38,111.20x = 595,060,654.56
  5. Step 5: Solve for x
    x = 595,060,654.56/38,111.20
  6. Step 6: Final answer
    x = 15,613.80

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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.