Home / 30,286.10-45,438.45-15,505.39

Finding the Fourth Proportional to 30,286.10, 45,438.45 and 15,505.39

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Solution

The fourth proportional to 30,286.10, 45,438.45 and 15,505.39 is: 23,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.10 : 45,438.45 = 15,505.39 : x
  2. Step 2: Convert to fraction form
    30,286.10/45,438.45 = 15,505.39/x
  3. Step 3: Cross multiply
    30,286.10x = 45,438.45 × 15,505.39
  4. Step 4: Simplify right side
    30,286.10x = 704,540,888.25
  5. Step 5: Solve for x
    x = 704,540,888.25/30,286.10
  6. Step 6: Final answer
    x = 23,262.85

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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.