Home / 26,128.20-39,192.30-10,542.20

Finding the Fourth Proportional to 26,128.20, 39,192.30 and 10,542.20

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Solution

The fourth proportional to 26,128.20, 39,192.30 and 10,542.20 is: 15,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,128.20 : 39,192.30 = 10,542.20 : x
  2. Step 2: Convert to fraction form
    26,128.20/39,192.30 = 10,542.20/x
  3. Step 3: Cross multiply
    26,128.20x = 39,192.30 × 10,542.20
  4. Step 4: Simplify right side
    26,128.20x = 413,173,065.06
  5. Step 5: Solve for x
    x = 413,173,065.06/26,128.20
  6. Step 6: Final answer
    x = 15,813.30

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Double scale
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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.