Home / 18,278.49-25,221.60-10,320.54

Finding the Fourth Proportional to 18,278.49, 25,221.60 and 10,320.54

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Solution

The fourth proportional to 18,278.49, 25,221.60 and 10,320.54 is: 14,240.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.49 : 25,221.60 = 10,320.54 : x
  2. Step 2: Convert to fraction form
    18,278.49/25,221.60 = 10,320.54/x
  3. Step 3: Cross multiply
    18,278.49x = 25,221.60 × 10,320.54
  4. Step 4: Simplify right side
    18,278.49x = 260,300,531.66
  5. Step 5: Solve for x
    x = 260,300,531.66/18,278.49
  6. Step 6: Final answer
    x = 14,240.81

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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.