Home / 21,331.66-31,971.54-15,093.47

Finding the Fourth Proportional to 21,331.66, 31,971.54 and 15,093.47

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Solution

The fourth proportional to 21,331.66, 31,971.54 and 15,093.47 is: 22,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.66 : 31,971.54 = 15,093.47 : x
  2. Step 2: Convert to fraction form
    21,331.66/31,971.54 = 15,093.47/x
  3. Step 3: Cross multiply
    21,331.66x = 31,971.54 × 15,093.47
  4. Step 4: Simplify right side
    21,331.66x = 482,561,616.37
  5. Step 5: Solve for x
    x = 482,561,616.37/21,331.66
  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.