Home / 26,265.60-39,390.24-8,731.20

Finding the Fourth Proportional to 26,265.60, 39,390.24 and 8,731.20

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Solution

The fourth proportional to 26,265.60, 39,390.24 and 8,731.20 is: 13,094.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,265.60 : 39,390.24 = 8,731.20 : x
  2. Step 2: Convert to fraction form
    26,265.60/39,390.24 = 8,731.20/x
  3. Step 3: Cross multiply
    26,265.60x = 39,390.24 × 8,731.20
  4. Step 4: Simplify right side
    26,265.60x = 343,924,063.49
  5. Step 5: Solve for x
    x = 343,924,063.49/26,265.60
  6. Step 6: Final answer
    x = 13,094.09

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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.