Home / 21,910.08-32,865.60-7,119

Finding the Fourth Proportional to 21,910.08, 32,865.60 and 7,119

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Solution

The fourth proportional to 21,910.08, 32,865.60 and 7,119 is: 10,678.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910.08 : 32,865.60 = 7,119 : x
  2. Step 2: Convert to fraction form
    21,910.08/32,865.60 = 7,119/x
  3. Step 3: Cross multiply
    21,910.08x = 32,865.60 × 7,119
  4. Step 4: Simplify right side
    21,910.08x = 233,970,206.40
  5. Step 5: Solve for x
    x = 233,970,206.40/21,910.08
  6. Step 6: Final answer
    x = 10,678.66

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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.