Home / 38,151.28-57,235.76-11,854.60

Finding the Fourth Proportional to 38,151.28, 57,235.76 and 11,854.60

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Solution

The fourth proportional to 38,151.28, 57,235.76 and 11,854.60 is: 17,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,151.28 : 57,235.76 = 11,854.60 : x
  2. Step 2: Convert to fraction form
    38,151.28/57,235.76 = 11,854.60/x
  3. Step 3: Cross multiply
    38,151.28x = 57,235.76 × 11,854.60
  4. Step 4: Simplify right side
    38,151.28x = 678,507,040.50
  5. Step 5: Solve for x
    x = 678,507,040.50/38,151.28
  6. Step 6: Final answer
    x = 17,784.65

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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.