Home / 30,497.86-45,728.72-9,431.66

Finding the Fourth Proportional to 30,497.86, 45,728.72 and 9,431.66

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Solution

The fourth proportional to 30,497.86, 45,728.72 and 9,431.66 is: 14,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,497.86 : 45,728.72 = 9,431.66 : x
  2. Step 2: Convert to fraction form
    30,497.86/45,728.72 = 9,431.66/x
  3. Step 3: Cross multiply
    30,497.86x = 45,728.72 × 9,431.66
  4. Step 4: Simplify right side
    30,497.86x = 431,297,806.44
  5. Step 5: Solve for x
    x = 431,297,806.44/30,497.86
  6. Step 6: Final answer
    x = 14,141.91

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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.