Home / 26,439.36-39,649.82-10,640.30

Finding the Fourth Proportional to 26,439.36, 39,649.82 and 10,640.30

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Solution

The fourth proportional to 26,439.36, 39,649.82 and 10,640.30 is: 15,956.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,439.36 : 39,649.82 = 10,640.30 : x
  2. Step 2: Convert to fraction form
    26,439.36/39,649.82 = 10,640.30/x
  3. Step 3: Cross multiply
    26,439.36x = 39,649.82 × 10,640.30
  4. Step 4: Simplify right side
    26,439.36x = 421,885,728.30
  5. Step 5: Solve for x
    x = 421,885,728.30/26,439.36
  6. Step 6: Final answer
    x = 15,956.73

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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.