Home / 21,273.11-29,355.74-11,711.13

Finding the Fourth Proportional to 21,273.11, 29,355.74 and 11,711.13

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Solution

The fourth proportional to 21,273.11, 29,355.74 and 11,711.13 is: 16,160.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.11 : 29,355.74 = 11,711.13 : x
  2. Step 2: Convert to fraction form
    21,273.11/29,355.74 = 11,711.13/x
  3. Step 3: Cross multiply
    21,273.11x = 29,355.74 × 11,711.13
  4. Step 4: Simplify right side
    21,273.11x = 343,788,828.83
  5. Step 5: Solve for x
    x = 343,788,828.83/21,273.11
  6. Step 6: Final answer
    x = 16,160.73

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1.5x scale

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.