Home / 26,739.12-36,877.68-20,040.72

Finding the Fourth Proportional to 26,739.12, 36,877.68 and 20,040.72

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Solution

The fourth proportional to 26,739.12, 36,877.68 and 20,040.72 is: 27,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,739.12 : 36,877.68 = 20,040.72 : x
  2. Step 2: Convert to fraction form
    26,739.12/36,877.68 = 20,040.72/x
  3. Step 3: Cross multiply
    26,739.12x = 36,877.68 × 20,040.72
  4. Step 4: Simplify right side
    26,739.12x = 739,055,259.13
  5. Step 5: Solve for x
    x = 739,055,259.13/26,739.12
  6. Step 6: Final answer
    x = 27,639.48

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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.