Home / 21,979.89-32,971.35-8,832.27

Finding the Fourth Proportional to 21,979.89, 32,971.35 and 8,832.27

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Solution

The fourth proportional to 21,979.89, 32,971.35 and 8,832.27 is: 13,249.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979.89 : 32,971.35 = 8,832.27 : x
  2. Step 2: Convert to fraction form
    21,979.89/32,971.35 = 8,832.27/x
  3. Step 3: Cross multiply
    21,979.89x = 32,971.35 × 8,832.27
  4. Step 4: Simplify right side
    21,979.89x = 291,211,865.46
  5. Step 5: Solve for x
    x = 291,211,865.46/21,979.89
  6. Step 6: Final answer
    x = 13,249.01

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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.