Home / 20,192.50-27,865.21-11,239.46

Finding the Fourth Proportional to 20,192.50, 27,865.21 and 11,239.46

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Solution

The fourth proportional to 20,192.50, 27,865.21 and 11,239.46 is: 15,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.50 : 27,865.21 = 11,239.46 : x
  2. Step 2: Convert to fraction form
    20,192.50/27,865.21 = 11,239.46/x
  3. Step 3: Cross multiply
    20,192.50x = 27,865.21 × 11,239.46
  4. Step 4: Simplify right side
    20,192.50x = 313,189,913.19
  5. Step 5: Solve for x
    x = 313,189,913.19/20,192.50
  6. Step 6: Final answer
    x = 15,510.21

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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.