Home / 18,239.49-25,170.12-10,281.69

Finding the Fourth Proportional to 18,239.49, 25,170.12 and 10,281.69

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Solution

The fourth proportional to 18,239.49, 25,170.12 and 10,281.69 is: 14,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.49 : 25,170.12 = 10,281.69 : x
  2. Step 2: Convert to fraction form
    18,239.49/25,170.12 = 10,281.69/x
  3. Step 3: Cross multiply
    18,239.49x = 25,170.12 × 10,281.69
  4. Step 4: Simplify right side
    18,239.49x = 258,791,371.10
  5. Step 5: Solve for x
    x = 258,791,371.10/18,239.49
  6. Step 6: Final answer
    x = 14,188.52

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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.