Home / 26,629.92-39,882.63-21,045.78

Finding the Fourth Proportional to 26,629.92, 39,882.63 and 21,045.78

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Solution

The fourth proportional to 26,629.92, 39,882.63 and 21,045.78 is: 31,519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,629.92 : 39,882.63 = 21,045.78 : x
  2. Step 2: Convert to fraction form
    26,629.92/39,882.63 = 21,045.78/x
  3. Step 3: Cross multiply
    26,629.92x = 39,882.63 × 21,045.78
  4. Step 4: Simplify right side
    26,629.92x = 839,361,056.80
  5. Step 5: Solve for x
    x = 839,361,056.80/26,629.92
  6. Step 6: Final answer
    x = 31,519.47

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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.