Home / 28,780.52-43,170.77-9,061.07

Finding the Fourth Proportional to 28,780.52, 43,170.77 and 9,061.07

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Solution

The fourth proportional to 28,780.52, 43,170.77 and 9,061.07 is: 13,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.52 : 43,170.77 = 9,061.07 : x
  2. Step 2: Convert to fraction form
    28,780.52/43,170.77 = 9,061.07/x
  3. Step 3: Cross multiply
    28,780.52x = 43,170.77 × 9,061.07
  4. Step 4: Simplify right side
    28,780.52x = 391,173,175.72
  5. Step 5: Solve for x
    x = 391,173,175.72/28,780.52
  6. Step 6: Final answer
    x = 13,591.60

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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.