Home / 30,393.39-41,892.66-20,318.16

Finding the Fourth Proportional to 30,393.39, 41,892.66 and 20,318.16

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Solution

The fourth proportional to 30,393.39, 41,892.66 and 20,318.16 is: 28,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,393.39 : 41,892.66 = 20,318.16 : x
  2. Step 2: Convert to fraction form
    30,393.39/41,892.66 = 20,318.16/x
  3. Step 3: Cross multiply
    30,393.39x = 41,892.66 × 20,318.16
  4. Step 4: Simplify right side
    30,393.39x = 851,181,768.71
  5. Step 5: Solve for x
    x = 851,181,768.71/30,393.39
  6. Step 6: Final answer
    x = 28,005.49

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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.