Home / 20,159.08-27,820.48-11,206.73

Finding the Fourth Proportional to 20,159.08, 27,820.48 and 11,206.73

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Solution

The fourth proportional to 20,159.08, 27,820.48 and 11,206.73 is: 15,465.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.08 : 27,820.48 = 11,206.73 : x
  2. Step 2: Convert to fraction form
    20,159.08/27,820.48 = 11,206.73/x
  3. Step 3: Cross multiply
    20,159.08x = 27,820.48 × 11,206.73
  4. Step 4: Simplify right side
    20,159.08x = 311,776,513.89
  5. Step 5: Solve for x
    x = 311,776,513.89/20,159.08
  6. Step 6: Final answer
    x = 15,465.81

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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.