Home / 20,113.01-27,754.62-11,159.95

Finding the Fourth Proportional to 20,113.01, 27,754.62 and 11,159.95

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Solution

The fourth proportional to 20,113.01, 27,754.62 and 11,159.95 is: 15,399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.01 : 27,754.62 = 11,159.95 : x
  2. Step 2: Convert to fraction form
    20,113.01/27,754.62 = 11,159.95/x
  3. Step 3: Cross multiply
    20,113.01x = 27,754.62 × 11,159.95
  4. Step 4: Simplify right side
    20,113.01x = 309,740,032.70
  5. Step 5: Solve for x
    x = 309,740,032.70/20,113.01
  6. Step 6: Final answer
    x = 15,399.98

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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.