Home / 28,227.81-38,954.32-16,291.15

Finding the Fourth Proportional to 28,227.81, 38,954.32 and 16,291.15

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Solution

The fourth proportional to 28,227.81, 38,954.32 and 16,291.15 is: 22,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.81 : 38,954.32 = 16,291.15 : x
  2. Step 2: Convert to fraction form
    28,227.81/38,954.32 = 16,291.15/x
  3. Step 3: Cross multiply
    28,227.81x = 38,954.32 × 16,291.15
  4. Step 4: Simplify right side
    28,227.81x = 634,610,739.32
  5. Step 5: Solve for x
    x = 634,610,739.32/28,227.81
  6. Step 6: Final answer
    x = 22,481.75

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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.