Home / 21,379.95-32,069.93-11,523.87

Finding the Fourth Proportional to 21,379.95, 32,069.93 and 11,523.87

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Solution

The fourth proportional to 21,379.95, 32,069.93 and 11,523.87 is: 17,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,379.95 : 32,069.93 = 11,523.87 : x
  2. Step 2: Convert to fraction form
    21,379.95/32,069.93 = 11,523.87/x
  3. Step 3: Cross multiply
    21,379.95x = 32,069.93 × 11,523.87
  4. Step 4: Simplify right side
    21,379.95x = 369,569,646.61
  5. Step 5: Solve for x
    x = 369,569,646.61/21,379.95
  6. Step 6: Final answer
    x = 17,285.81

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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.