Home / 26,278.50-39,378.41-13,599.47

Finding the Fourth Proportional to 26,278.50, 39,378.41 and 13,599.47

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Solution

The fourth proportional to 26,278.50, 39,378.41 and 13,599.47 is: 20,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,278.50 : 39,378.41 = 13,599.47 : x
  2. Step 2: Convert to fraction form
    26,278.50/39,378.41 = 13,599.47/x
  3. Step 3: Cross multiply
    26,278.50x = 39,378.41 × 13,599.47
  4. Step 4: Simplify right side
    26,278.50x = 535,525,505.44
  5. Step 5: Solve for x
    x = 535,525,505.44/26,278.50
  6. Step 6: Final answer
    x = 20,378.85

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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.