Home / 48,305.80-72,455.10-20,218.60

Finding the Fourth Proportional to 48,305.80, 72,455.10 and 20,218.60

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Solution

The fourth proportional to 48,305.80, 72,455.10 and 20,218.60 is: 30,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,305.80 : 72,455.10 = 20,218.60 : x
  2. Step 2: Convert to fraction form
    48,305.80/72,455.10 = 20,218.60/x
  3. Step 3: Cross multiply
    48,305.80x = 72,455.10 × 20,218.60
  4. Step 4: Simplify right side
    48,305.80x = 1,464,940,684.86
  5. Step 5: Solve for x
    x = 1,464,940,684.86/48,305.80
  6. Step 6: Final answer
    x = 30,326.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.