Home / 18,087.45-24,960.12-10,020.78

Finding the Fourth Proportional to 18,087.45, 24,960.12 and 10,020.78

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Solution

The fourth proportional to 18,087.45, 24,960.12 and 10,020.78 is: 13,828.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.45 : 24,960.12 = 10,020.78 : x
  2. Step 2: Convert to fraction form
    18,087.45/24,960.12 = 10,020.78/x
  3. Step 3: Cross multiply
    18,087.45x = 24,960.12 × 10,020.78
  4. Step 4: Simplify right side
    18,087.45x = 250,119,871.29
  5. Step 5: Solve for x
    x = 250,119,871.29/18,087.45
  6. Step 6: Final answer
    x = 13,828.37

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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.