Home / 21,401.52-29,535.46-11,970.14

Finding the Fourth Proportional to 21,401.52, 29,535.46 and 11,970.14

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Solution

The fourth proportional to 21,401.52, 29,535.46 and 11,970.14 is: 16,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.52 : 29,535.46 = 11,970.14 : x
  2. Step 2: Convert to fraction form
    21,401.52/29,535.46 = 11,970.14/x
  3. Step 3: Cross multiply
    21,401.52x = 29,535.46 × 11,970.14
  4. Step 4: Simplify right side
    21,401.52x = 353,543,591.16
  5. Step 5: Solve for x
    x = 353,543,591.16/21,401.52
  6. Step 6: Final answer
    x = 16,519.56

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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.