Home / 21,382.48-32,056.39-8,911.86

Finding the Fourth Proportional to 21,382.48, 32,056.39 and 8,911.86

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Solution

The fourth proportional to 21,382.48, 32,056.39 and 8,911.86 is: 13,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.48 : 32,056.39 = 8,911.86 : x
  2. Step 2: Convert to fraction form
    21,382.48/32,056.39 = 8,911.86/x
  3. Step 3: Cross multiply
    21,382.48x = 32,056.39 × 8,911.86
  4. Step 4: Simplify right side
    21,382.48x = 285,681,950.71
  5. Step 5: Solve for x
    x = 285,681,950.71/21,382.48
  6. Step 6: Final answer
    x = 13,360.56

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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.