Home / 21,222.60-31,849.02-17,112.12

Finding the Fourth Proportional to 21,222.60, 31,849.02 and 17,112.12

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Solution

The fourth proportional to 21,222.60, 31,849.02 and 17,112.12 is: 25,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222.60 : 31,849.02 = 17,112.12 : x
  2. Step 2: Convert to fraction form
    21,222.60/31,849.02 = 17,112.12/x
  3. Step 3: Cross multiply
    21,222.60x = 31,849.02 × 17,112.12
  4. Step 4: Simplify right side
    21,222.60x = 545,004,252.12
  5. Step 5: Solve for x
    x = 545,004,252.12/21,222.60
  6. Step 6: Final answer
    x = 25,680.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.