Home / 22,212.84-30,639.42-13,253.46

Finding the Fourth Proportional to 22,212.84, 30,639.42 and 13,253.46

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Solution

The fourth proportional to 22,212.84, 30,639.42 and 13,253.46 is: 18,281.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.84 : 30,639.42 = 13,253.46 : x
  2. Step 2: Convert to fraction form
    22,212.84/30,639.42 = 13,253.46/x
  3. Step 3: Cross multiply
    22,212.84x = 30,639.42 × 13,253.46
  4. Step 4: Simplify right side
    22,212.84x = 406,078,327.39
  5. Step 5: Solve for x
    x = 406,078,327.39/22,212.84
  6. Step 6: Final answer
    x = 18,281.24

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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.