Home / 21,329.54-31,964.24-10,072.87

Finding the Fourth Proportional to 21,329.54, 31,964.24 and 10,072.87

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Solution

The fourth proportional to 21,329.54, 31,964.24 and 10,072.87 is: 15,095.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.54 : 31,964.24 = 10,072.87 : x
  2. Step 2: Convert to fraction form
    21,329.54/31,964.24 = 10,072.87/x
  3. Step 3: Cross multiply
    21,329.54x = 31,964.24 × 10,072.87
  4. Step 4: Simplify right side
    21,329.54x = 321,971,634.17
  5. Step 5: Solve for x
    x = 321,971,634.17/21,329.54
  6. Step 6: Final answer
    x = 15,095.10

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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.