Home / 30,286.58-45,387.34-25,821.15

Finding the Fourth Proportional to 30,286.58, 45,387.34 and 25,821.15

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Solution

The fourth proportional to 30,286.58, 45,387.34 and 25,821.15 is: 38,695.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.58 : 45,387.34 = 25,821.15 : x
  2. Step 2: Convert to fraction form
    30,286.58/45,387.34 = 25,821.15/x
  3. Step 3: Cross multiply
    30,286.58x = 45,387.34 × 25,821.15
  4. Step 4: Simplify right side
    30,286.58x = 1,171,952,958.20
  5. Step 5: Solve for x
    x = 1,171,952,958.20/30,286.58
  6. Step 6: Final answer
    x = 38,695.46

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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.