Home / 26,720.70-40,095.45-11,139.90

Finding the Fourth Proportional to 26,720.70, 40,095.45 and 11,139.90

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Solution

The fourth proportional to 26,720.70, 40,095.45 and 11,139.90 is: 16,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,720.70 : 40,095.45 = 11,139.90 : x
  2. Step 2: Convert to fraction form
    26,720.70/40,095.45 = 11,139.90/x
  3. Step 3: Cross multiply
    26,720.70x = 40,095.45 × 11,139.90
  4. Step 4: Simplify right side
    26,720.70x = 446,659,303.46
  5. Step 5: Solve for x
    x = 446,659,303.46/26,720.70
  6. Step 6: Final answer
    x = 16,715.85

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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.