Home / 26,439.90-36,479.62-15,105.30

Finding the Fourth Proportional to 26,439.90, 36,479.62 and 15,105.30

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Solution

The fourth proportional to 26,439.90, 36,479.62 and 15,105.30 is: 20,841.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,439.90 : 36,479.62 = 15,105.30 : x
  2. Step 2: Convert to fraction form
    26,439.90/36,479.62 = 15,105.30/x
  3. Step 3: Cross multiply
    26,439.90x = 36,479.62 × 15,105.30
  4. Step 4: Simplify right side
    26,439.90x = 551,035,603.99
  5. Step 5: Solve for x
    x = 551,035,603.99/26,439.90
  6. Step 6: Final answer
    x = 20,841.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.