Home / 28,357.38-39,132.87-15,610.29

Finding the Fourth Proportional to 28,357.38, 39,132.87 and 15,610.29

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Solution

The fourth proportional to 28,357.38, 39,132.87 and 15,610.29 is: 21,542.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.38 : 39,132.87 = 15,610.29 : x
  2. Step 2: Convert to fraction form
    28,357.38/39,132.87 = 15,610.29/x
  3. Step 3: Cross multiply
    28,357.38x = 39,132.87 × 15,610.29
  4. Step 4: Simplify right side
    28,357.38x = 610,875,390.69
  5. Step 5: Solve for x
    x = 610,875,390.69/28,357.38
  6. Step 6: Final answer
    x = 21,542.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.