Home / 20,141.10-27,795.51-13,781.03

Finding the Fourth Proportional to 20,141.10, 27,795.51 and 13,781.03

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Solution

The fourth proportional to 20,141.10, 27,795.51 and 13,781.03 is: 19,018.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.10 : 27,795.51 = 13,781.03 : x
  2. Step 2: Convert to fraction form
    20,141.10/27,795.51 = 13,781.03/x
  3. Step 3: Cross multiply
    20,141.10x = 27,795.51 × 13,781.03
  4. Step 4: Simplify right side
    20,141.10x = 383,050,852.72
  5. Step 5: Solve for x
    x = 383,050,852.72/20,141.10
  6. Step 6: Final answer
    x = 19,018.37

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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.