Home / 21,099.09-31,654.98-6,308.49

Finding the Fourth Proportional to 21,099.09, 31,654.98 and 6,308.49

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Solution

The fourth proportional to 21,099.09, 31,654.98 and 6,308.49 is: 9,464.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099.09 : 31,654.98 = 6,308.49 : x
  2. Step 2: Convert to fraction form
    21,099.09/31,654.98 = 6,308.49/x
  3. Step 3: Cross multiply
    21,099.09x = 31,654.98 × 6,308.49
  4. Step 4: Simplify right side
    21,099.09x = 199,695,124.78
  5. Step 5: Solve for x
    x = 199,695,124.78/21,099.09
  6. Step 6: Final answer
    x = 9,464.63

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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.