Home / 21,052.32-31,581.60-7,198.08

Finding the Fourth Proportional to 21,052.32, 31,581.60 and 7,198.08

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Solution

The fourth proportional to 21,052.32, 31,581.60 and 7,198.08 is: 10,798.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.32 : 31,581.60 = 7,198.08 : x
  2. Step 2: Convert to fraction form
    21,052.32/31,581.60 = 7,198.08/x
  3. Step 3: Cross multiply
    21,052.32x = 31,581.60 × 7,198.08
  4. Step 4: Simplify right side
    21,052.32x = 227,326,883.33
  5. Step 5: Solve for x
    x = 227,326,883.33/21,052.32
  6. Step 6: Final answer
    x = 10,798.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.