Home / 20,209.51-27,866.84-13,837.15

Finding the Fourth Proportional to 20,209.51, 27,866.84 and 13,837.15

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Solution

The fourth proportional to 20,209.51, 27,866.84 and 13,837.15 is: 19,080.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.51 : 27,866.84 = 13,837.15 : x
  2. Step 2: Convert to fraction form
    20,209.51/27,866.84 = 13,837.15/x
  3. Step 3: Cross multiply
    20,209.51x = 27,866.84 × 13,837.15
  4. Step 4: Simplify right side
    20,209.51x = 385,597,575.92
  5. Step 5: Solve for x
    x = 385,597,575.92/20,209.51
  6. Step 6: Final answer
    x = 19,080.01

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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.