Home / 38,290.07-57,435.13-11,996.86

Finding the Fourth Proportional to 38,290.07, 57,435.13 and 11,996.86

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Solution

The fourth proportional to 38,290.07, 57,435.13 and 11,996.86 is: 17,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,290.07 : 57,435.13 = 11,996.86 : x
  2. Step 2: Convert to fraction form
    38,290.07/57,435.13 = 11,996.86/x
  3. Step 3: Cross multiply
    38,290.07x = 57,435.13 × 11,996.86
  4. Step 4: Simplify right side
    38,290.07x = 689,041,125.31
  5. Step 5: Solve for x
    x = 689,041,125.31/38,290.07
  6. Step 6: Final answer
    x = 17,995.30

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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.