Home / 26,839.20-40,259.70-7,119.75

Finding the Fourth Proportional to 26,839.20, 40,259.70 and 7,119.75

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Solution

The fourth proportional to 26,839.20, 40,259.70 and 7,119.75 is: 10,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,839.20 : 40,259.70 = 7,119.75 : x
  2. Step 2: Convert to fraction form
    26,839.20/40,259.70 = 7,119.75/x
  3. Step 3: Cross multiply
    26,839.20x = 40,259.70 × 7,119.75
  4. Step 4: Simplify right side
    26,839.20x = 286,638,999.08
  5. Step 5: Solve for x
    x = 286,638,999.08/26,839.20
  6. Step 6: Final answer
    x = 10,679.86

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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.