Home / 26,619.60-39,943.44-20,375.76

Finding the Fourth Proportional to 26,619.60, 39,943.44 and 20,375.76

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Solution

The fourth proportional to 26,619.60, 39,943.44 and 20,375.76 is: 30,574.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,619.60 : 39,943.44 = 20,375.76 : x
  2. Step 2: Convert to fraction form
    26,619.60/39,943.44 = 20,375.76/x
  3. Step 3: Cross multiply
    26,619.60x = 39,943.44 × 20,375.76
  4. Step 4: Simplify right side
    26,619.60x = 813,877,947.01
  5. Step 5: Solve for x
    x = 813,877,947.01/26,619.60
  6. Step 6: Final answer
    x = 30,574.39

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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.