Home / 26,331.60-39,497.40-18,987.60

Finding the Fourth Proportional to 26,331.60, 39,497.40 and 18,987.60

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Solution

The fourth proportional to 26,331.60, 39,497.40 and 18,987.60 is: 28,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,331.60 : 39,497.40 = 18,987.60 : x
  2. Step 2: Convert to fraction form
    26,331.60/39,497.40 = 18,987.60/x
  3. Step 3: Cross multiply
    26,331.60x = 39,497.40 × 18,987.60
  4. Step 4: Simplify right side
    26,331.60x = 749,960,832.24
  5. Step 5: Solve for x
    x = 749,960,832.24/26,331.60
  6. Step 6: Final answer
    x = 28,481.40

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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.