Home / 21,165.84-31,747.68-5,582.88

Finding the Fourth Proportional to 21,165.84, 31,747.68 and 5,582.88

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Solution

The fourth proportional to 21,165.84, 31,747.68 and 5,582.88 is: 8,374.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165.84 : 31,747.68 = 5,582.88 : x
  2. Step 2: Convert to fraction form
    21,165.84/31,747.68 = 5,582.88/x
  3. Step 3: Cross multiply
    21,165.84x = 31,747.68 × 5,582.88
  4. Step 4: Simplify right side
    21,165.84x = 177,243,487.72
  5. Step 5: Solve for x
    x = 177,243,487.72/21,165.84
  6. Step 6: Final answer
    x = 8,374.04

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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.