Home / 21,393.91-32,091-14,004.57

Finding the Fourth Proportional to 21,393.91, 32,091 and 14,004.57

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Solution

The fourth proportional to 21,393.91, 32,091 and 14,004.57 is: 21,006.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393.91 : 32,091 = 14,004.57 : x
  2. Step 2: Convert to fraction form
    21,393.91/32,091 = 14,004.57/x
  3. Step 3: Cross multiply
    21,393.91x = 32,091 × 14,004.57
  4. Step 4: Simplify right side
    21,393.91x = 449,420,655.87
  5. Step 5: Solve for x
    x = 449,420,655.87/21,393.91
  6. Step 6: Final answer
    x = 21,006.94

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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.