Home / 20,922.93-31,347.45-11,040.41

Finding the Fourth Proportional to 20,922.93, 31,347.45 and 11,040.41

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Solution

The fourth proportional to 20,922.93, 31,347.45 and 11,040.41 is: 16,541.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.93 : 31,347.45 = 11,040.41 : x
  2. Step 2: Convert to fraction form
    20,922.93/31,347.45 = 11,040.41/x
  3. Step 3: Cross multiply
    20,922.93x = 31,347.45 × 11,040.41
  4. Step 4: Simplify right side
    20,922.93x = 346,088,543.72
  5. Step 5: Solve for x
    x = 346,088,543.72/20,922.93
  6. Step 6: Final answer
    x = 16,541.11

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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.