Home / 28,078.30-42,226.80-25,235.20

Finding the Fourth Proportional to 28,078.30, 42,226.80 and 25,235.20

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Solution

The fourth proportional to 28,078.30, 42,226.80 and 25,235.20 is: 37,951.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.30 : 42,226.80 = 25,235.20 : x
  2. Step 2: Convert to fraction form
    28,078.30/42,226.80 = 25,235.20/x
  3. Step 3: Cross multiply
    28,078.30x = 42,226.80 × 25,235.20
  4. Step 4: Simplify right side
    28,078.30x = 1,065,601,743.36
  5. Step 5: Solve for x
    x = 1,065,601,743.36/28,078.30
  6. Step 6: Final answer
    x = 37,951.08

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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.