Home / 21,117.15-29,180.22-20,092.35

Finding the Fourth Proportional to 21,117.15, 29,180.22 and 20,092.35

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Solution

The fourth proportional to 21,117.15, 29,180.22 and 20,092.35 is: 27,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117.15 : 29,180.22 = 20,092.35 : x
  2. Step 2: Convert to fraction form
    21,117.15/29,180.22 = 20,092.35/x
  3. Step 3: Cross multiply
    21,117.15x = 29,180.22 × 20,092.35
  4. Step 4: Simplify right side
    21,117.15x = 586,299,193.32
  5. Step 5: Solve for x
    x = 586,299,193.32/21,117.15
  6. Step 6: Final answer
    x = 27,764.13

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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.