Home / 21,019.68-31,517.37-10,468.26

Finding the Fourth Proportional to 21,019.68, 31,517.37 and 10,468.26

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Solution

The fourth proportional to 21,019.68, 31,517.37 and 10,468.26 is: 15,696.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.68 : 31,517.37 = 10,468.26 : x
  2. Step 2: Convert to fraction form
    21,019.68/31,517.37 = 10,468.26/x
  3. Step 3: Cross multiply
    21,019.68x = 31,517.37 × 10,468.26
  4. Step 4: Simplify right side
    21,019.68x = 329,932,023.68
  5. Step 5: Solve for x
    x = 329,932,023.68/21,019.68
  6. Step 6: Final answer
    x = 15,696.34

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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.