Home / 21,983.67-32,980.08-8,836.04

Finding the Fourth Proportional to 21,983.67, 32,980.08 and 8,836.04

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Solution

The fourth proportional to 21,983.67, 32,980.08 and 8,836.04 is: 13,255.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,983.67 : 32,980.08 = 8,836.04 : x
  2. Step 2: Convert to fraction form
    21,983.67/32,980.08 = 8,836.04/x
  3. Step 3: Cross multiply
    21,983.67x = 32,980.08 × 8,836.04
  4. Step 4: Simplify right side
    21,983.67x = 291,413,141.18
  5. Step 5: Solve for x
    x = 291,413,141.18/21,983.67
  6. Step 6: Final answer
    x = 13,255.89

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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.