Home / 28,366.89-39,146.29-15,794.61

Finding the Fourth Proportional to 28,366.89, 39,146.29 and 15,794.61

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Solution

The fourth proportional to 28,366.89, 39,146.29 and 15,794.61 is: 21,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.89 : 39,146.29 = 15,794.61 : x
  2. Step 2: Convert to fraction form
    28,366.89/39,146.29 = 15,794.61/x
  3. Step 3: Cross multiply
    28,366.89x = 39,146.29 × 15,794.61
  4. Step 4: Simplify right side
    28,366.89x = 618,300,383.50
  5. Step 5: Solve for x
    x = 618,300,383.50/28,366.89
  6. Step 6: Final answer
    x = 21,796.55

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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.