Home / 22,292.42-30,763.47-12,221.28

Finding the Fourth Proportional to 22,292.42, 30,763.47 and 12,221.28

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Solution

The fourth proportional to 22,292.42, 30,763.47 and 12,221.28 is: 16,865.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,292.42 : 30,763.47 = 12,221.28 : x
  2. Step 2: Convert to fraction form
    22,292.42/30,763.47 = 12,221.28/x
  3. Step 3: Cross multiply
    22,292.42x = 30,763.47 × 12,221.28
  4. Step 4: Simplify right side
    22,292.42x = 375,968,980.64
  5. Step 5: Solve for x
    x = 375,968,980.64/22,292.42
  6. Step 6: Final answer
    x = 16,865.33

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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.