Home / 20,494.01-28,283.38-11,540.98

Finding the Fourth Proportional to 20,494.01, 28,283.38 and 11,540.98

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Solution

The fourth proportional to 20,494.01, 28,283.38 and 11,540.98 is: 15,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.01 : 28,283.38 = 11,540.98 : x
  2. Step 2: Convert to fraction form
    20,494.01/28,283.38 = 11,540.98/x
  3. Step 3: Cross multiply
    20,494.01x = 28,283.38 × 11,540.98
  4. Step 4: Simplify right side
    20,494.01x = 326,417,929.41
  5. Step 5: Solve for x
    x = 326,417,929.41/20,494.01
  6. Step 6: Final answer
    x = 15,927.48

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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.