Home / 21,098.97-31,647.60-5,304.06

Finding the Fourth Proportional to 21,098.97, 31,647.60 and 5,304.06

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Solution

The fourth proportional to 21,098.97, 31,647.60 and 5,304.06 is: 7,955.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,098.97 : 31,647.60 = 5,304.06 : x
  2. Step 2: Convert to fraction form
    21,098.97/31,647.60 = 5,304.06/x
  3. Step 3: Cross multiply
    21,098.97x = 31,647.60 × 5,304.06
  4. Step 4: Simplify right side
    21,098.97x = 167,860,769.26
  5. Step 5: Solve for x
    x = 167,860,769.26/21,098.97
  6. Step 6: Final answer
    x = 7,955.88

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1.5x scale

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.