Home / 21,518.97-32,062.17-20,310.36

Finding the Fourth Proportional to 21,518.97, 32,062.17 and 20,310.36

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Solution

The fourth proportional to 21,518.97, 32,062.17 and 20,310.36 is: 30,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.97 : 32,062.17 = 20,310.36 : x
  2. Step 2: Convert to fraction form
    21,518.97/32,062.17 = 20,310.36/x
  3. Step 3: Cross multiply
    21,518.97x = 32,062.17 × 20,310.36
  4. Step 4: Simplify right side
    21,518.97x = 651,194,215.08
  5. Step 5: Solve for x
    x = 651,194,215.08/21,518.97
  6. Step 6: Final answer
    x = 30,261.40

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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.