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Finding the Fourth Proportional to 26,980.60, 40,489.14 and 9,450.60

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Solution

The fourth proportional to 26,980.60, 40,489.14 and 9,450.60 is: 14,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,980.60 : 40,489.14 = 9,450.60 : x
  2. Step 2: Convert to fraction form
    26,980.60/40,489.14 = 9,450.60/x
  3. Step 3: Cross multiply
    26,980.60x = 40,489.14 × 9,450.60
  4. Step 4: Simplify right side
    26,980.60x = 382,646,666.48
  5. Step 5: Solve for x
    x = 382,646,666.48/26,980.60
  6. Step 6: Final answer
    x = 14,182.29

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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.