Home / 38,642.45-57,930.15-17,278.94

Finding the Fourth Proportional to 38,642.45, 57,930.15 and 17,278.94

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Solution

The fourth proportional to 38,642.45, 57,930.15 and 17,278.94 is: 25,903.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,642.45 : 57,930.15 = 17,278.94 : x
  2. Step 2: Convert to fraction form
    38,642.45/57,930.15 = 17,278.94/x
  3. Step 3: Cross multiply
    38,642.45x = 57,930.15 × 17,278.94
  4. Step 4: Simplify right side
    38,642.45x = 1,000,971,586.04
  5. Step 5: Solve for x
    x = 1,000,971,586.04/38,642.45
  6. Step 6: Final answer
    x = 25,903.42

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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.