Home / 22,274.70-30,717.86-13,320.78

Finding the Fourth Proportional to 22,274.70, 30,717.86 and 13,320.78

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Solution

The fourth proportional to 22,274.70, 30,717.86 and 13,320.78 is: 18,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,274.70 : 30,717.86 = 13,320.78 : x
  2. Step 2: Convert to fraction form
    22,274.70/30,717.86 = 13,320.78/x
  3. Step 3: Cross multiply
    22,274.70x = 30,717.86 × 13,320.78
  4. Step 4: Simplify right side
    22,274.70x = 409,185,855.13
  5. Step 5: Solve for x
    x = 409,185,855.13/22,274.70
  6. Step 6: Final answer
    x = 18,369.98

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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.