Home / 21,856.24-32,784.33-8,717.84

Finding the Fourth Proportional to 21,856.24, 32,784.33 and 8,717.84

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Solution

The fourth proportional to 21,856.24, 32,784.33 and 8,717.84 is: 13,076.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,856.24 : 32,784.33 = 8,717.84 : x
  2. Step 2: Convert to fraction form
    21,856.24/32,784.33 = 8,717.84/x
  3. Step 3: Cross multiply
    21,856.24x = 32,784.33 × 8,717.84
  4. Step 4: Simplify right side
    21,856.24x = 285,808,379.53
  5. Step 5: Solve for x
    x = 285,808,379.53/21,856.24
  6. Step 6: Final answer
    x = 13,076.74

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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.