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Finding the Fourth Proportional to 26,748.60, 40,079.70 and 16,870.20

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Solution

The fourth proportional to 26,748.60, 40,079.70 and 16,870.20 is: 25,278.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,748.60 : 40,079.70 = 16,870.20 : x
  2. Step 2: Convert to fraction form
    26,748.60/40,079.70 = 16,870.20/x
  3. Step 3: Cross multiply
    26,748.60x = 40,079.70 × 16,870.20
  4. Step 4: Simplify right side
    26,748.60x = 676,152,554.94
  5. Step 5: Solve for x
    x = 676,152,554.94/26,748.60
  6. Step 6: Final answer
    x = 25,278.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.