Home / 26,010.80-39,016.20-10,439.60

Finding the Fourth Proportional to 26,010.80, 39,016.20 and 10,439.60

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Solution

The fourth proportional to 26,010.80, 39,016.20 and 10,439.60 is: 15,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,010.80 : 39,016.20 = 10,439.60 : x
  2. Step 2: Convert to fraction form
    26,010.80/39,016.20 = 10,439.60/x
  3. Step 3: Cross multiply
    26,010.80x = 39,016.20 × 10,439.60
  4. Step 4: Simplify right side
    26,010.80x = 407,313,521.52
  5. Step 5: Solve for x
    x = 407,313,521.52/26,010.80
  6. Step 6: Final answer
    x = 15,659.40

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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.