Home / 22,222.61-30,667.78-12,151.47

Finding the Fourth Proportional to 22,222.61, 30,667.78 and 12,151.47

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Solution

The fourth proportional to 22,222.61, 30,667.78 and 12,151.47 is: 16,769.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,222.61 : 30,667.78 = 12,151.47 : x
  2. Step 2: Convert to fraction form
    22,222.61/30,667.78 = 12,151.47/x
  3. Step 3: Cross multiply
    22,222.61x = 30,667.78 × 12,151.47
  4. Step 4: Simplify right side
    22,222.61x = 372,658,608.64
  5. Step 5: Solve for x
    x = 372,658,608.64/22,222.61
  6. Step 6: Final answer
    x = 16,769.34

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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.