Home / 22,391.52-30,900.44-12,320.60

Finding the Fourth Proportional to 22,391.52, 30,900.44 and 12,320.60

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Solution

The fourth proportional to 22,391.52, 30,900.44 and 12,320.60 is: 17,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,391.52 : 30,900.44 = 12,320.60 : x
  2. Step 2: Convert to fraction form
    22,391.52/30,900.44 = 12,320.60/x
  3. Step 3: Cross multiply
    22,391.52x = 30,900.44 × 12,320.60
  4. Step 4: Simplify right side
    22,391.52x = 380,711,961.06
  5. Step 5: Solve for x
    x = 380,711,961.06/22,391.52
  6. Step 6: Final answer
    x = 17,002.51

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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.