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Finding the Fourth Proportional to 26,899.60, 40,354.80 and 8,180.80

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Solution

The fourth proportional to 26,899.60, 40,354.80 and 8,180.80 is: 12,272.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,899.60 : 40,354.80 = 8,180.80 : x
  2. Step 2: Convert to fraction form
    26,899.60/40,354.80 = 8,180.80/x
  3. Step 3: Cross multiply
    26,899.60x = 40,354.80 × 8,180.80
  4. Step 4: Simplify right side
    26,899.60x = 330,134,547.84
  5. Step 5: Solve for x
    x = 330,134,547.84/26,899.60
  6. Step 6: Final answer
    x = 12,272.84

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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.