Home / 28,877.97-43,321.74-9,161.25

Finding the Fourth Proportional to 28,877.97, 43,321.74 and 9,161.25

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Solution

The fourth proportional to 28,877.97, 43,321.74 and 9,161.25 is: 13,743.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.97 : 43,321.74 = 9,161.25 : x
  2. Step 2: Convert to fraction form
    28,877.97/43,321.74 = 9,161.25/x
  3. Step 3: Cross multiply
    28,877.97x = 43,321.74 × 9,161.25
  4. Step 4: Simplify right side
    28,877.97x = 396,881,337.45
  5. Step 5: Solve for x
    x = 396,881,337.45/28,877.97
  6. Step 6: Final answer
    x = 13,743.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.