Home / 21,097.56-31,646.06-6,306.60

Finding the Fourth Proportional to 21,097.56, 31,646.06 and 6,306.60

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Solution

The fourth proportional to 21,097.56, 31,646.06 and 6,306.60 is: 9,459.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097.56 : 31,646.06 = 6,306.60 : x
  2. Step 2: Convert to fraction form
    21,097.56/31,646.06 = 6,306.60/x
  3. Step 3: Cross multiply
    21,097.56x = 31,646.06 × 6,306.60
  4. Step 4: Simplify right side
    21,097.56x = 199,579,042.00
  5. Step 5: Solve for x
    x = 199,579,042.00/21,097.56
  6. Step 6: Final answer
    x = 9,459.82

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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.