Home / 26,211.20-39,321.60-10,630.40

Finding the Fourth Proportional to 26,211.20, 39,321.60 and 10,630.40

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Solution

The fourth proportional to 26,211.20, 39,321.60 and 10,630.40 is: 15,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,211.20 : 39,321.60 = 10,630.40 : x
  2. Step 2: Convert to fraction form
    26,211.20/39,321.60 = 10,630.40/x
  3. Step 3: Cross multiply
    26,211.20x = 39,321.60 × 10,630.40
  4. Step 4: Simplify right side
    26,211.20x = 418,004,336.64
  5. Step 5: Solve for x
    x = 418,004,336.64/26,211.20
  6. Step 6: Final answer
    x = 15,947.55

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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.