Home / 28,839.92-43,259.60-9,118.47

Finding the Fourth Proportional to 28,839.92, 43,259.60 and 9,118.47

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Solution

The fourth proportional to 28,839.92, 43,259.60 and 9,118.47 is: 13,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839.92 : 43,259.60 = 9,118.47 : x
  2. Step 2: Convert to fraction form
    28,839.92/43,259.60 = 9,118.47/x
  3. Step 3: Cross multiply
    28,839.92x = 43,259.60 × 9,118.47
  4. Step 4: Simplify right side
    28,839.92x = 394,461,319.22
  5. Step 5: Solve for x
    x = 394,461,319.22/28,839.92
  6. Step 6: Final answer
    x = 13,677.62

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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.