Home / 22,292.28-30,762.72-12,220.20

Finding the Fourth Proportional to 22,292.28, 30,762.72 and 12,220.20

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Solution

The fourth proportional to 22,292.28, 30,762.72 and 12,220.20 is: 16,863.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,292.28 : 30,762.72 = 12,220.20 : x
  2. Step 2: Convert to fraction form
    22,292.28/30,762.72 = 12,220.20/x
  3. Step 3: Cross multiply
    22,292.28x = 30,762.72 × 12,220.20
  4. Step 4: Simplify right side
    22,292.28x = 375,926,590.94
  5. Step 5: Solve for x
    x = 375,926,590.94/22,292.28
  6. Step 6: Final answer
    x = 16,863.53

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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.