Home / 21,055.50-29,056.23-11,623.86

Finding the Fourth Proportional to 21,055.50, 29,056.23 and 11,623.86

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Solution

The fourth proportional to 21,055.50, 29,056.23 and 11,623.86 is: 16,040.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.50 : 29,056.23 = 11,623.86 : x
  2. Step 2: Convert to fraction form
    21,055.50/29,056.23 = 11,623.86/x
  3. Step 3: Cross multiply
    21,055.50x = 29,056.23 × 11,623.86
  4. Step 4: Simplify right side
    21,055.50x = 337,745,549.65
  5. Step 5: Solve for x
    x = 337,745,549.65/21,055.50
  6. Step 6: Final answer
    x = 16,040.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.