Home / 22,379.06-30,882.45-12,307.49

Finding the Fourth Proportional to 22,379.06, 30,882.45 and 12,307.49

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Solution

The fourth proportional to 22,379.06, 30,882.45 and 12,307.49 is: 16,983.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,379.06 : 30,882.45 = 12,307.49 : x
  2. Step 2: Convert to fraction form
    22,379.06/30,882.45 = 12,307.49/x
  3. Step 3: Cross multiply
    22,379.06x = 30,882.45 × 12,307.49
  4. Step 4: Simplify right side
    22,379.06x = 380,085,444.55
  5. Step 5: Solve for x
    x = 380,085,444.55/22,379.06
  6. Step 6: Final answer
    x = 16,983.98

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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.