Home / 31,455.25-47,190.18-10,678.75

Finding the Fourth Proportional to 31,455.25, 47,190.18 and 10,678.75

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Solution

The fourth proportional to 31,455.25, 47,190.18 and 10,678.75 is: 16,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.25 : 47,190.18 = 10,678.75 : x
  2. Step 2: Convert to fraction form
    31,455.25/47,190.18 = 10,678.75/x
  3. Step 3: Cross multiply
    31,455.25x = 47,190.18 × 10,678.75
  4. Step 4: Simplify right side
    31,455.25x = 503,932,134.68
  5. Step 5: Solve for x
    x = 503,932,134.68/31,455.25
  6. Step 6: Final answer
    x = 16,020.60

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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.