Home / 26,571.78-39,882.30-13,433.40

Finding the Fourth Proportional to 26,571.78, 39,882.30 and 13,433.40

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Solution

The fourth proportional to 26,571.78, 39,882.30 and 13,433.40 is: 20,162.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,571.78 : 39,882.30 = 13,433.40 : x
  2. Step 2: Convert to fraction form
    26,571.78/39,882.30 = 13,433.40/x
  3. Step 3: Cross multiply
    26,571.78x = 39,882.30 × 13,433.40
  4. Step 4: Simplify right side
    26,571.78x = 535,754,888.82
  5. Step 5: Solve for x
    x = 535,754,888.82/26,571.78
  6. Step 6: Final answer
    x = 20,162.55

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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.