Home / 26,958.30-40,437.45-18,620.70

Finding the Fourth Proportional to 26,958.30, 40,437.45 and 18,620.70

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Solution

The fourth proportional to 26,958.30, 40,437.45 and 18,620.70 is: 27,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,958.30 : 40,437.45 = 18,620.70 : x
  2. Step 2: Convert to fraction form
    26,958.30/40,437.45 = 18,620.70/x
  3. Step 3: Cross multiply
    26,958.30x = 40,437.45 × 18,620.70
  4. Step 4: Simplify right side
    26,958.30x = 752,973,625.22
  5. Step 5: Solve for x
    x = 752,973,625.22/26,958.30
  6. Step 6: Final answer
    x = 27,931.05

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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.