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Finding the Fourth Proportional to 26,998.80, 40,465.80 and 13,844.40

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Solution

The fourth proportional to 26,998.80, 40,465.80 and 13,844.40 is: 20,749.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,998.80 : 40,465.80 = 13,844.40 : x
  2. Step 2: Convert to fraction form
    26,998.80/40,465.80 = 13,844.40/x
  3. Step 3: Cross multiply
    26,998.80x = 40,465.80 × 13,844.40
  4. Step 4: Simplify right side
    26,998.80x = 560,224,721.52
  5. Step 5: Solve for x
    x = 560,224,721.52/26,998.80
  6. Step 6: Final answer
    x = 20,749.99

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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.