Home / 21,960.08-30,307.44-12,530

Finding the Fourth Proportional to 21,960.08, 30,307.44 and 12,530

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Solution

The fourth proportional to 21,960.08, 30,307.44 and 12,530 is: 17,292.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.08 : 30,307.44 = 12,530 : x
  2. Step 2: Convert to fraction form
    21,960.08/30,307.44 = 12,530/x
  3. Step 3: Cross multiply
    21,960.08x = 30,307.44 × 12,530
  4. Step 4: Simplify right side
    21,960.08x = 379,752,223.20
  5. Step 5: Solve for x
    x = 379,752,223.20/21,960.08
  6. Step 6: Final answer
    x = 17,292.84

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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.