Home / 28,338.20-42,507.30-25,276.40

Finding the Fourth Proportional to 28,338.20, 42,507.30 and 25,276.40

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Solution

The fourth proportional to 28,338.20, 42,507.30 and 25,276.40 is: 37,914.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.20 : 42,507.30 = 25,276.40 : x
  2. Step 2: Convert to fraction form
    28,338.20/42,507.30 = 25,276.40/x
  3. Step 3: Cross multiply
    28,338.20x = 42,507.30 × 25,276.40
  4. Step 4: Simplify right side
    28,338.20x = 1,074,431,517.72
  5. Step 5: Solve for x
    x = 1,074,431,517.72/28,338.20
  6. Step 6: Final answer
    x = 37,914.60

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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.