Home / 21,331.68-31,971.56-15,093.48

Finding the Fourth Proportional to 21,331.68, 31,971.56 and 15,093.48

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Solution

The fourth proportional to 21,331.68, 31,971.56 and 15,093.48 is: 22,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.68 : 31,971.56 = 15,093.48 : x
  2. Step 2: Convert to fraction form
    21,331.68/31,971.56 = 15,093.48/x
  3. Step 3: Cross multiply
    21,331.68x = 31,971.56 × 15,093.48
  4. Step 4: Simplify right side
    21,331.68x = 482,562,101.43
  5. Step 5: Solve for x
    x = 482,562,101.43/21,331.68
  6. Step 6: Final answer
    x = 22,621.85

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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.