Home / 39,104.28-58,611.02-18,000

Finding the Fourth Proportional to 39,104.28, 58,611.02 and 18,000

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Solution

The fourth proportional to 39,104.28, 58,611.02 and 18,000 is: 26,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,104.28 : 58,611.02 = 18,000 : x
  2. Step 2: Convert to fraction form
    39,104.28/58,611.02 = 18,000/x
  3. Step 3: Cross multiply
    39,104.28x = 58,611.02 × 18,000
  4. Step 4: Simplify right side
    39,104.28x = 1,054,998,360
  5. Step 5: Solve for x
    x = 1,054,998,360/39,104.28
  6. Step 6: Final answer
    x = 26,979.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.