Home / 21,496.29-32,246.60-7,991.07

Finding the Fourth Proportional to 21,496.29, 32,246.60 and 7,991.07

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Solution

The fourth proportional to 21,496.29, 32,246.60 and 7,991.07 is: 11,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,496.29 : 32,246.60 = 7,991.07 : x
  2. Step 2: Convert to fraction form
    21,496.29/32,246.60 = 7,991.07/x
  3. Step 3: Cross multiply
    21,496.29x = 32,246.60 × 7,991.07
  4. Step 4: Simplify right side
    21,496.29x = 257,684,797.91
  5. Step 5: Solve for x
    x = 257,684,797.91/21,496.29
  6. Step 6: Final answer
    x = 11,987.41

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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.