Home / 18,239.40-25,170.54-10,280.92

Finding the Fourth Proportional to 18,239.40, 25,170.54 and 10,280.92

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Solution

The fourth proportional to 18,239.40, 25,170.54 and 10,280.92 is: 14,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.40 : 25,170.54 = 10,280.92 : x
  2. Step 2: Convert to fraction form
    18,239.40/25,170.54 = 10,280.92/x
  3. Step 3: Cross multiply
    18,239.40x = 25,170.54 × 10,280.92
  4. Step 4: Simplify right side
    18,239.40x = 258,776,308.10
  5. Step 5: Solve for x
    x = 258,776,308.10/18,239.40
  6. Step 6: Final answer
    x = 14,187.76

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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.