Home / 22,272.69-30,715.11-13,318.77

Finding the Fourth Proportional to 22,272.69, 30,715.11 and 13,318.77

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Solution

The fourth proportional to 22,272.69, 30,715.11 and 13,318.77 is: 18,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.69 : 30,715.11 = 13,318.77 : x
  2. Step 2: Convert to fraction form
    22,272.69/30,715.11 = 13,318.77/x
  3. Step 3: Cross multiply
    22,272.69x = 30,715.11 × 13,318.77
  4. Step 4: Simplify right side
    22,272.69x = 409,087,485.61
  5. Step 5: Solve for x
    x = 409,087,485.61/22,272.69
  6. Step 6: Final answer
    x = 18,367.22

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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.