Home / 21,329.26-31,993.90-10,934.38

Finding the Fourth Proportional to 21,329.26, 31,993.90 and 10,934.38

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Solution

The fourth proportional to 21,329.26, 31,993.90 and 10,934.38 is: 16,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.26 : 31,993.90 = 10,934.38 : x
  2. Step 2: Convert to fraction form
    21,329.26/31,993.90 = 10,934.38/x
  3. Step 3: Cross multiply
    21,329.26x = 31,993.90 × 10,934.38
  4. Step 4: Simplify right side
    21,329.26x = 349,833,460.28
  5. Step 5: Solve for x
    x = 349,833,460.28/21,329.26
  6. Step 6: Final answer
    x = 16,401.58

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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.