Home / 21,474.90-32,176.77-8,320.08

Finding the Fourth Proportional to 21,474.90, 32,176.77 and 8,320.08

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Solution

The fourth proportional to 21,474.90, 32,176.77 and 8,320.08 is: 12,466.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.90 : 32,176.77 = 8,320.08 : x
  2. Step 2: Convert to fraction form
    21,474.90/32,176.77 = 8,320.08/x
  3. Step 3: Cross multiply
    21,474.90x = 32,176.77 × 8,320.08
  4. Step 4: Simplify right side
    21,474.90x = 267,713,300.54
  5. Step 5: Solve for x
    x = 267,713,300.54/21,474.90
  6. Step 6: Final answer
    x = 12,466.34

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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.