Home / 26,885.20-40,328.70-7,165.75

Finding the Fourth Proportional to 26,885.20, 40,328.70 and 7,165.75

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Solution

The fourth proportional to 26,885.20, 40,328.70 and 7,165.75 is: 10,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,885.20 : 40,328.70 = 7,165.75 : x
  2. Step 2: Convert to fraction form
    26,885.20/40,328.70 = 7,165.75/x
  3. Step 3: Cross multiply
    26,885.20x = 40,328.70 × 7,165.75
  4. Step 4: Simplify right side
    26,885.20x = 288,985,382.03
  5. Step 5: Solve for x
    x = 288,985,382.03/26,885.20
  6. Step 6: Final answer
    x = 10,748.86

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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.