Home / 19,220.52-28,839.42-10,442.28

Finding the Fourth Proportional to 19,220.52, 28,839.42 and 10,442.28

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Solution

The fourth proportional to 19,220.52, 28,839.42 and 10,442.28 is: 15,668.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.52 : 28,839.42 = 10,442.28 : x
  2. Step 2: Convert to fraction form
    19,220.52/28,839.42 = 10,442.28/x
  3. Step 3: Cross multiply
    19,220.52x = 28,839.42 × 10,442.28
  4. Step 4: Simplify right side
    19,220.52x = 301,149,298.68
  5. Step 5: Solve for x
    x = 301,149,298.68/19,220.52
  6. Step 6: Final answer
    x = 15,668.11

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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.