Home / 28,883.10-43,328.70-9,159.60

Finding the Fourth Proportional to 28,883.10, 43,328.70 and 9,159.60

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Solution

The fourth proportional to 28,883.10, 43,328.70 and 9,159.60 is: 13,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,883.10 : 43,328.70 = 9,159.60 : x
  2. Step 2: Convert to fraction form
    28,883.10/43,328.70 = 9,159.60/x
  3. Step 3: Cross multiply
    28,883.10x = 43,328.70 × 9,159.60
  4. Step 4: Simplify right side
    28,883.10x = 396,873,560.52
  5. Step 5: Solve for x
    x = 396,873,560.52/28,883.10
  6. Step 6: Final answer
    x = 13,740.68

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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.