Home / 28,334.28-39,101.28-15,761.48

Finding the Fourth Proportional to 28,334.28, 39,101.28 and 15,761.48

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Solution

The fourth proportional to 28,334.28, 39,101.28 and 15,761.48 is: 21,750.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.28 : 39,101.28 = 15,761.48 : x
  2. Step 2: Convert to fraction form
    28,334.28/39,101.28 = 15,761.48/x
  3. Step 3: Cross multiply
    28,334.28x = 39,101.28 × 15,761.48
  4. Step 4: Simplify right side
    28,334.28x = 616,294,042.69
  5. Step 5: Solve for x
    x = 616,294,042.69/28,334.28
  6. Step 6: Final answer
    x = 21,750.83

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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.