Home / 22,455.36-30,984.68-13,500.72

Finding the Fourth Proportional to 22,455.36, 30,984.68 and 13,500.72

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Solution

The fourth proportional to 22,455.36, 30,984.68 and 13,500.72 is: 18,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.36 : 30,984.68 = 13,500.72 : x
  2. Step 2: Convert to fraction form
    22,455.36/30,984.68 = 13,500.72/x
  3. Step 3: Cross multiply
    22,455.36x = 30,984.68 × 13,500.72
  4. Step 4: Simplify right side
    22,455.36x = 418,315,488.97
  5. Step 5: Solve for x
    x = 418,315,488.97/22,455.36
  6. Step 6: Final answer
    x = 18,628.76

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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.