Home / 22,221.61-30,686.39-14,277.79

Finding the Fourth Proportional to 22,221.61, 30,686.39 and 14,277.79

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Solution

The fourth proportional to 22,221.61, 30,686.39 and 14,277.79 is: 19,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.61 : 30,686.39 = 14,277.79 : x
  2. Step 2: Convert to fraction form
    22,221.61/30,686.39 = 14,277.79/x
  3. Step 3: Cross multiply
    22,221.61x = 30,686.39 × 14,277.79
  4. Step 4: Simplify right side
    22,221.61x = 438,133,760.49
  5. Step 5: Solve for x
    x = 438,133,760.49/22,221.61
  6. Step 6: Final answer
    x = 19,716.56

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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.