Home / 20,494.06-28,281.81-11,541.64

Finding the Fourth Proportional to 20,494.06, 28,281.81 and 11,541.64

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Solution

The fourth proportional to 20,494.06, 28,281.81 and 11,541.64 is: 15,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.06 : 28,281.81 = 11,541.64 : x
  2. Step 2: Convert to fraction form
    20,494.06/28,281.81 = 11,541.64/x
  3. Step 3: Cross multiply
    20,494.06x = 28,281.81 × 11,541.64
  4. Step 4: Simplify right side
    20,494.06x = 326,418,469.57
  5. Step 5: Solve for x
    x = 326,418,469.57/20,494.06
  6. Step 6: Final answer
    x = 15,927.47

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1.5x scale

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.