Home / 28,999.10-43,498.65-9,278.30

Finding the Fourth Proportional to 28,999.10, 43,498.65 and 9,278.30

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Solution

The fourth proportional to 28,999.10, 43,498.65 and 9,278.30 is: 13,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.10 : 43,498.65 = 9,278.30 : x
  2. Step 2: Convert to fraction form
    28,999.10/43,498.65 = 9,278.30/x
  3. Step 3: Cross multiply
    28,999.10x = 43,498.65 × 9,278.30
  4. Step 4: Simplify right side
    28,999.10x = 403,593,524.30
  5. Step 5: Solve for x
    x = 403,593,524.30/28,999.10
  6. Step 6: Final answer
    x = 13,917.45

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Similar ratio
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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.