Home / 28,298.46-39,057.27-18,738.54

Finding the Fourth Proportional to 28,298.46, 39,057.27 and 18,738.54

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Solution

The fourth proportional to 28,298.46, 39,057.27 and 18,738.54 is: 25,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,298.46 : 39,057.27 = 18,738.54 : x
  2. Step 2: Convert to fraction form
    28,298.46/39,057.27 = 18,738.54/x
  3. Step 3: Cross multiply
    28,298.46x = 39,057.27 × 18,738.54
  4. Step 4: Simplify right side
    28,298.46x = 731,876,216.19
  5. Step 5: Solve for x
    x = 731,876,216.19/28,298.46
  6. Step 6: Final answer
    x = 25,862.76

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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.