Home / 38,188.10-57,287.55-11,890.10

Finding the Fourth Proportional to 38,188.10, 57,287.55 and 11,890.10

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Solution

The fourth proportional to 38,188.10, 57,287.55 and 11,890.10 is: 17,836.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,188.10 : 57,287.55 = 11,890.10 : x
  2. Step 2: Convert to fraction form
    38,188.10/57,287.55 = 11,890.10/x
  3. Step 3: Cross multiply
    38,188.10x = 57,287.55 × 11,890.10
  4. Step 4: Simplify right side
    38,188.10x = 681,154,698.26
  5. Step 5: Solve for x
    x = 681,154,698.26/38,188.10
  6. Step 6: Final answer
    x = 17,836.83

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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.