Home / 38,120.20-52,605.24-20,892.40

Finding the Fourth Proportional to 38,120.20, 52,605.24 and 20,892.40

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Solution

The fourth proportional to 38,120.20, 52,605.24 and 20,892.40 is: 28,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.20 : 52,605.24 = 20,892.40 : x
  2. Step 2: Convert to fraction form
    38,120.20/52,605.24 = 20,892.40/x
  3. Step 3: Cross multiply
    38,120.20x = 52,605.24 × 20,892.40
  4. Step 4: Simplify right side
    38,120.20x = 1,099,049,716.18
  5. Step 5: Solve for x
    x = 1,099,049,716.18/38,120.20
  6. Step 6: Final answer
    x = 28,831.16

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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.