Home / 28,239.03-42,358.28-17,148.78

Finding the Fourth Proportional to 28,239.03, 42,358.28 and 17,148.78

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Solution

The fourth proportional to 28,239.03, 42,358.28 and 17,148.78 is: 25,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.03 : 42,358.28 = 17,148.78 : x
  2. Step 2: Convert to fraction form
    28,239.03/42,358.28 = 17,148.78/x
  3. Step 3: Cross multiply
    28,239.03x = 42,358.28 × 17,148.78
  4. Step 4: Simplify right side
    28,239.03x = 726,392,739.15
  5. Step 5: Solve for x
    x = 726,392,739.15/28,239.03
  6. Step 6: Final answer
    x = 25,723.01

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1.5x scale

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.