Home / 30,247.07-45,370.45-7,757.65

Finding the Fourth Proportional to 30,247.07, 45,370.45 and 7,757.65

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Solution

The fourth proportional to 30,247.07, 45,370.45 and 7,757.65 is: 11,636.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,247.07 : 45,370.45 = 7,757.65 : x
  2. Step 2: Convert to fraction form
    30,247.07/45,370.45 = 7,757.65/x
  3. Step 3: Cross multiply
    30,247.07x = 45,370.45 × 7,757.65
  4. Step 4: Simplify right side
    30,247.07x = 351,967,844.59
  5. Step 5: Solve for x
    x = 351,967,844.59/30,247.07
  6. Step 6: Final answer
    x = 11,636.43

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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.