Home / 20,205.17-27,873.49-15,698.08

Finding the Fourth Proportional to 20,205.17, 27,873.49 and 15,698.08

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Solution

The fourth proportional to 20,205.17, 27,873.49 and 15,698.08 is: 21,655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.17 : 27,873.49 = 15,698.08 : x
  2. Step 2: Convert to fraction form
    20,205.17/27,873.49 = 15,698.08/x
  3. Step 3: Cross multiply
    20,205.17x = 27,873.49 × 15,698.08
  4. Step 4: Simplify right side
    20,205.17x = 437,560,058.04
  5. Step 5: Solve for x
    x = 437,560,058.04/20,205.17
  6. Step 6: Final answer
    x = 21,655.85

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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.