Home / 26,121.20-39,181.80-16,255.40

Finding the Fourth Proportional to 26,121.20, 39,181.80 and 16,255.40

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Solution

The fourth proportional to 26,121.20, 39,181.80 and 16,255.40 is: 24,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,121.20 : 39,181.80 = 16,255.40 : x
  2. Step 2: Convert to fraction form
    26,121.20/39,181.80 = 16,255.40/x
  3. Step 3: Cross multiply
    26,121.20x = 39,181.80 × 16,255.40
  4. Step 4: Simplify right side
    26,121.20x = 636,915,831.72
  5. Step 5: Solve for x
    x = 636,915,831.72/26,121.20
  6. Step 6: Final answer
    x = 24,383.10

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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.