Home / 21,224.96-31,944.01-15,987.09

Finding the Fourth Proportional to 21,224.96, 31,944.01 and 15,987.09

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Solution

The fourth proportional to 21,224.96, 31,944.01 and 15,987.09 is: 24,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.96 : 31,944.01 = 15,987.09 : x
  2. Step 2: Convert to fraction form
    21,224.96/31,944.01 = 15,987.09/x
  3. Step 3: Cross multiply
    21,224.96x = 31,944.01 × 15,987.09
  4. Step 4: Simplify right side
    21,224.96x = 510,691,682.90
  5. Step 5: Solve for x
    x = 510,691,682.90/21,224.96
  6. Step 6: Final answer
    x = 24,060.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.