Home / 28,117.28-38,796.60-16,181.12

Finding the Fourth Proportional to 28,117.28, 38,796.60 and 16,181.12

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Solution

The fourth proportional to 28,117.28, 38,796.60 and 16,181.12 is: 22,326.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.28 : 38,796.60 = 16,181.12 : x
  2. Step 2: Convert to fraction form
    28,117.28/38,796.60 = 16,181.12/x
  3. Step 3: Cross multiply
    28,117.28x = 38,796.60 × 16,181.12
  4. Step 4: Simplify right side
    28,117.28x = 627,772,440.19
  5. Step 5: Solve for x
    x = 627,772,440.19/28,117.28
  6. Step 6: Final answer
    x = 22,326.93

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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.