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Finding the Fourth Proportional to 26,982.88, 37,268.88 and 20,298.40

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Solution

The fourth proportional to 26,982.88, 37,268.88 and 20,298.40 is: 28,036.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,982.88 : 37,268.88 = 20,298.40 : x
  2. Step 2: Convert to fraction form
    26,982.88/37,268.88 = 20,298.40/x
  3. Step 3: Cross multiply
    26,982.88x = 37,268.88 × 20,298.40
  4. Step 4: Simplify right side
    26,982.88x = 756,498,633.79
  5. Step 5: Solve for x
    x = 756,498,633.79/26,982.88
  6. Step 6: Final answer
    x = 28,036.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.