Home / 48,414.80-66,810.32-28,272.80

Finding the Fourth Proportional to 48,414.80, 66,810.32 and 28,272.80

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Solution

The fourth proportional to 48,414.80, 66,810.32 and 28,272.80 is: 39,015.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,414.80 : 66,810.32 = 28,272.80 : x
  2. Step 2: Convert to fraction form
    48,414.80/66,810.32 = 28,272.80/x
  3. Step 3: Cross multiply
    48,414.80x = 66,810.32 × 28,272.80
  4. Step 4: Simplify right side
    48,414.80x = 1,888,914,815.30
  5. Step 5: Solve for x
    x = 1,888,914,815.30/48,414.80
  6. Step 6: Final answer
    x = 39,015.24

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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.