Home / 20,112.12-29,955.42-19,058.28

Finding the Fourth Proportional to 20,112.12, 29,955.42 and 19,058.28

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Solution

The fourth proportional to 20,112.12, 29,955.42 and 19,058.28 is: 28,385.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.12 : 29,955.42 = 19,058.28 : x
  2. Step 2: Convert to fraction form
    20,112.12/29,955.42 = 19,058.28/x
  3. Step 3: Cross multiply
    20,112.12x = 29,955.42 × 19,058.28
  4. Step 4: Simplify right side
    20,112.12x = 570,898,781.88
  5. Step 5: Solve for x
    x = 570,898,781.88/20,112.12
  6. Step 6: Final answer
    x = 28,385.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.