Home / 28,446.25-39,254.39-15,868.57

Finding the Fourth Proportional to 28,446.25, 39,254.39 and 15,868.57

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Solution

The fourth proportional to 28,446.25, 39,254.39 and 15,868.57 is: 21,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.25 : 39,254.39 = 15,868.57 : x
  2. Step 2: Convert to fraction form
    28,446.25/39,254.39 = 15,868.57/x
  3. Step 3: Cross multiply
    28,446.25x = 39,254.39 × 15,868.57
  4. Step 4: Simplify right side
    28,446.25x = 622,911,035.52
  5. Step 5: Solve for x
    x = 622,911,035.52/28,446.25
  6. Step 6: Final answer
    x = 21,897.83

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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.