Home / 20,506-28,296.36-11,552.02

Finding the Fourth Proportional to 20,506, 28,296.36 and 11,552.02

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Solution

The fourth proportional to 20,506, 28,296.36 and 11,552.02 is: 15,940.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506 : 28,296.36 = 11,552.02 : x
  2. Step 2: Convert to fraction form
    20,506/28,296.36 = 11,552.02/x
  3. Step 3: Cross multiply
    20,506x = 28,296.36 × 11,552.02
  4. Step 4: Simplify right side
    20,506x = 326,880,116.65
  5. Step 5: Solve for x
    x = 326,880,116.65/20,506
  6. Step 6: Final answer
    x = 15,940.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.