Home / 28,310.79-42,466.19-8,320.28

Finding the Fourth Proportional to 28,310.79, 42,466.19 and 8,320.28

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Solution

The fourth proportional to 28,310.79, 42,466.19 and 8,320.28 is: 12,480.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.79 : 42,466.19 = 8,320.28 : x
  2. Step 2: Convert to fraction form
    28,310.79/42,466.19 = 8,320.28/x
  3. Step 3: Cross multiply
    28,310.79x = 42,466.19 × 8,320.28
  4. Step 4: Simplify right side
    28,310.79x = 353,330,591.06
  5. Step 5: Solve for x
    x = 353,330,591.06/28,310.79
  6. Step 6: Final answer
    x = 12,480.42

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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.