Home / 28,877.19-43,321.19-9,150.45

Finding the Fourth Proportional to 28,877.19, 43,321.19 and 9,150.45

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Solution

The fourth proportional to 28,877.19, 43,321.19 and 9,150.45 is: 13,727.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.19 : 43,321.19 = 9,150.45 : x
  2. Step 2: Convert to fraction form
    28,877.19/43,321.19 = 9,150.45/x
  3. Step 3: Cross multiply
    28,877.19x = 43,321.19 × 9,150.45
  4. Step 4: Simplify right side
    28,877.19x = 396,408,337.28
  5. Step 5: Solve for x
    x = 396,408,337.28/28,877.19
  6. Step 6: Final answer
    x = 13,727.39

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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.