Home / 26,000.22-39,000.12-13,513.80

Finding the Fourth Proportional to 26,000.22, 39,000.12 and 13,513.80

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Solution

The fourth proportional to 26,000.22, 39,000.12 and 13,513.80 is: 20,270.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,000.22 : 39,000.12 = 13,513.80 : x
  2. Step 2: Convert to fraction form
    26,000.22/39,000.12 = 13,513.80/x
  3. Step 3: Cross multiply
    26,000.22x = 39,000.12 × 13,513.80
  4. Step 4: Simplify right side
    26,000.22x = 527,039,821.66
  5. Step 5: Solve for x
    x = 527,039,821.66/26,000.22
  6. Step 6: Final answer
    x = 20,270.59

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Half scale
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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.