Home / 21,490.12-32,013.59-20,837.22

Finding the Fourth Proportional to 21,490.12, 32,013.59 and 20,837.22

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Solution

The fourth proportional to 21,490.12, 32,013.59 and 20,837.22 is: 31,040.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490.12 : 32,013.59 = 20,837.22 : x
  2. Step 2: Convert to fraction form
    21,490.12/32,013.59 = 20,837.22/x
  3. Step 3: Cross multiply
    21,490.12x = 32,013.59 × 20,837.22
  4. Step 4: Simplify right side
    21,490.12x = 667,073,993.58
  5. Step 5: Solve for x
    x = 667,073,993.58/21,490.12
  6. Step 6: Final answer
    x = 31,040.96

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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.