Home / 20,317.64-28,040.58-11,367.54

Finding the Fourth Proportional to 20,317.64, 28,040.58 and 11,367.54

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Solution

The fourth proportional to 20,317.64, 28,040.58 and 11,367.54 is: 15,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.64 : 28,040.58 = 11,367.54 : x
  2. Step 2: Convert to fraction form
    20,317.64/28,040.58 = 11,367.54/x
  3. Step 3: Cross multiply
    20,317.64x = 28,040.58 × 11,367.54
  4. Step 4: Simplify right side
    20,317.64x = 318,752,414.77
  5. Step 5: Solve for x
    x = 318,752,414.77/20,317.64
  6. Step 6: Final answer
    x = 15,688.46

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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.