Home / 21,991.79-32,987.23-5,351.92

Finding the Fourth Proportional to 21,991.79, 32,987.23 and 5,351.92

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Solution

The fourth proportional to 21,991.79, 32,987.23 and 5,351.92 is: 8,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991.79 : 32,987.23 = 5,351.92 : x
  2. Step 2: Convert to fraction form
    21,991.79/32,987.23 = 5,351.92/x
  3. Step 3: Cross multiply
    21,991.79x = 32,987.23 × 5,351.92
  4. Step 4: Simplify right side
    21,991.79x = 176,544,920.13
  5. Step 5: Solve for x
    x = 176,544,920.13/21,991.79
  6. Step 6: Final answer
    x = 8,027.76

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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.