Home / 18,278.44-25,224.70-10,320.78

Finding the Fourth Proportional to 18,278.44, 25,224.70 and 10,320.78

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Solution

The fourth proportional to 18,278.44, 25,224.70 and 10,320.78 is: 14,242.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.44 : 25,224.70 = 10,320.78 : x
  2. Step 2: Convert to fraction form
    18,278.44/25,224.70 = 10,320.78/x
  3. Step 3: Cross multiply
    18,278.44x = 25,224.70 × 10,320.78
  4. Step 4: Simplify right side
    18,278.44x = 260,338,579.27
  5. Step 5: Solve for x
    x = 260,338,579.27/18,278.44
  6. Step 6: Final answer
    x = 14,242.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.