Home / 21,340.02-29,449.26-11,908.38

Finding the Fourth Proportional to 21,340.02, 29,449.26 and 11,908.38

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Solution

The fourth proportional to 21,340.02, 29,449.26 and 11,908.38 is: 16,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.02 : 29,449.26 = 11,908.38 : x
  2. Step 2: Convert to fraction form
    21,340.02/29,449.26 = 11,908.38/x
  3. Step 3: Cross multiply
    21,340.02x = 29,449.26 × 11,908.38
  4. Step 4: Simplify right side
    21,340.02x = 350,692,978.80
  5. Step 5: Solve for x
    x = 350,692,978.80/21,340.02
  6. Step 6: Final answer
    x = 16,433.58

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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.