Home / 21,100.59-31,657.23-6,309.99

Finding the Fourth Proportional to 21,100.59, 31,657.23 and 6,309.99

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Solution

The fourth proportional to 21,100.59, 31,657.23 and 6,309.99 is: 9,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,100.59 : 31,657.23 = 6,309.99 : x
  2. Step 2: Convert to fraction form
    21,100.59/31,657.23 = 6,309.99/x
  3. Step 3: Cross multiply
    21,100.59x = 31,657.23 × 6,309.99
  4. Step 4: Simplify right side
    21,100.59x = 199,756,804.73
  5. Step 5: Solve for x
    x = 199,756,804.73/21,100.59
  6. Step 6: Final answer
    x = 9,466.88

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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.