Home / 28,366.50-39,146.04-15,791.52

Finding the Fourth Proportional to 28,366.50, 39,146.04 and 15,791.52

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Solution

The fourth proportional to 28,366.50, 39,146.04 and 15,791.52 is: 21,792.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.50 : 39,146.04 = 15,791.52 : x
  2. Step 2: Convert to fraction form
    28,366.50/39,146.04 = 15,791.52/x
  3. Step 3: Cross multiply
    28,366.50x = 39,146.04 × 15,791.52
  4. Step 4: Simplify right side
    28,366.50x = 618,175,473.58
  5. Step 5: Solve for x
    x = 618,175,473.58/28,366.50
  6. Step 6: Final answer
    x = 21,792.45

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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.