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Finding the Fourth Proportional to 39,405.97, 54,379.96 and 22,410.22

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Solution

The fourth proportional to 39,405.97, 54,379.96 and 22,410.22 is: 30,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,405.97 : 54,379.96 = 22,410.22 : x
  2. Step 2: Convert to fraction form
    39,405.97/54,379.96 = 22,410.22/x
  3. Step 3: Cross multiply
    39,405.97x = 54,379.96 × 22,410.22
  4. Step 4: Simplify right side
    39,405.97x = 1,218,666,867.19
  5. Step 5: Solve for x
    x = 1,218,666,867.19/39,405.97
  6. Step 6: Final answer
    x = 30,925.95

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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.