Home / 28,531.47-39,373.63-17,198.70

Finding the Fourth Proportional to 28,531.47, 39,373.63 and 17,198.70

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Solution

The fourth proportional to 28,531.47, 39,373.63 and 17,198.70 is: 23,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.47 : 39,373.63 = 17,198.70 : x
  2. Step 2: Convert to fraction form
    28,531.47/39,373.63 = 17,198.70/x
  3. Step 3: Cross multiply
    28,531.47x = 39,373.63 × 17,198.70
  4. Step 4: Simplify right side
    28,531.47x = 677,175,464.41
  5. Step 5: Solve for x
    x = 677,175,464.41/28,531.47
  6. Step 6: Final answer
    x = 23,734.34

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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.