Home / 21,042.58-29,077.24-20,017.52

Finding the Fourth Proportional to 21,042.58, 29,077.24 and 20,017.52

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Solution

The fourth proportional to 21,042.58, 29,077.24 and 20,017.52 is: 27,660.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.58 : 29,077.24 = 20,017.52 : x
  2. Step 2: Convert to fraction form
    21,042.58/29,077.24 = 20,017.52/x
  3. Step 3: Cross multiply
    21,042.58x = 29,077.24 × 20,017.52
  4. Step 4: Simplify right side
    21,042.58x = 582,054,233.24
  5. Step 5: Solve for x
    x = 582,054,233.24/21,042.58
  6. Step 6: Final answer
    x = 27,660.79

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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.