Home / 30,435.90-45,658.17-9,377.65

Finding the Fourth Proportional to 30,435.90, 45,658.17 and 9,377.65

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Solution

The fourth proportional to 30,435.90, 45,658.17 and 9,377.65 is: 14,067.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,435.90 : 45,658.17 = 9,377.65 : x
  2. Step 2: Convert to fraction form
    30,435.90/45,658.17 = 9,377.65/x
  3. Step 3: Cross multiply
    30,435.90x = 45,658.17 × 9,377.65
  4. Step 4: Simplify right side
    30,435.90x = 428,166,337.90
  5. Step 5: Solve for x
    x = 428,166,337.90/30,435.90
  6. Step 6: Final answer
    x = 14,067.81

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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.