Home / 21,986.35-32,979.12-5,346.27

Finding the Fourth Proportional to 21,986.35, 32,979.12 and 5,346.27

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Solution

The fourth proportional to 21,986.35, 32,979.12 and 5,346.27 is: 8,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.35 : 32,979.12 = 5,346.27 : x
  2. Step 2: Convert to fraction form
    21,986.35/32,979.12 = 5,346.27/x
  3. Step 3: Cross multiply
    21,986.35x = 32,979.12 × 5,346.27
  4. Step 4: Simplify right side
    21,986.35x = 176,315,259.83
  5. Step 5: Solve for x
    x = 176,315,259.83/21,986.35
  6. Step 6: Final answer
    x = 8,019.31

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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.