Home / 18,270.47-25,214.42-10,309.79

Finding the Fourth Proportional to 18,270.47, 25,214.42 and 10,309.79

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Solution

The fourth proportional to 18,270.47, 25,214.42 and 10,309.79 is: 14,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.47 : 25,214.42 = 10,309.79 : x
  2. Step 2: Convert to fraction form
    18,270.47/25,214.42 = 10,309.79/x
  3. Step 3: Cross multiply
    18,270.47x = 25,214.42 × 10,309.79
  4. Step 4: Simplify right side
    18,270.47x = 259,955,375.17
  5. Step 5: Solve for x
    x = 259,955,375.17/18,270.47
  6. Step 6: Final answer
    x = 14,228.17

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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.