Home / 20,333.91-28,060.52-11,381.41

Finding the Fourth Proportional to 20,333.91, 28,060.52 and 11,381.41

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Solution

The fourth proportional to 20,333.91, 28,060.52 and 11,381.41 is: 15,706.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,333.91 : 28,060.52 = 11,381.41 : x
  2. Step 2: Convert to fraction form
    20,333.91/28,060.52 = 11,381.41/x
  3. Step 3: Cross multiply
    20,333.91x = 28,060.52 × 11,381.41
  4. Step 4: Simplify right side
    20,333.91x = 319,368,282.93
  5. Step 5: Solve for x
    x = 319,368,282.93/20,333.91
  6. Step 6: Final answer
    x = 15,706.19

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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.