Home / 26,451.60-39,612.60-17,638.80

Finding the Fourth Proportional to 26,451.60, 39,612.60 and 17,638.80

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Solution

The fourth proportional to 26,451.60, 39,612.60 and 17,638.80 is: 26,414.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,451.60 : 39,612.60 = 17,638.80 : x
  2. Step 2: Convert to fraction form
    26,451.60/39,612.60 = 17,638.80/x
  3. Step 3: Cross multiply
    26,451.60x = 39,612.60 × 17,638.80
  4. Step 4: Simplify right side
    26,451.60x = 698,718,728.88
  5. Step 5: Solve for x
    x = 698,718,728.88/26,451.60
  6. Step 6: Final answer
    x = 26,414.99

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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.