Home / 30,286.48-41,812.73-20,248.15

Finding the Fourth Proportional to 30,286.48, 41,812.73 and 20,248.15

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Solution

The fourth proportional to 30,286.48, 41,812.73 and 20,248.15 is: 27,954.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.48 : 41,812.73 = 20,248.15 : x
  2. Step 2: Convert to fraction form
    30,286.48/41,812.73 = 20,248.15/x
  3. Step 3: Cross multiply
    30,286.48x = 41,812.73 × 20,248.15
  4. Step 4: Simplify right side
    30,286.48x = 846,630,428.95
  5. Step 5: Solve for x
    x = 846,630,428.95/30,286.48
  6. Step 6: Final answer
    x = 27,954.07

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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.