Home / 31,377.61-47,072.21-10,318.83

Finding the Fourth Proportional to 31,377.61, 47,072.21 and 10,318.83

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Solution

The fourth proportional to 31,377.61, 47,072.21 and 10,318.83 is: 15,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,377.61 : 47,072.21 = 10,318.83 : x
  2. Step 2: Convert to fraction form
    31,377.61/47,072.21 = 10,318.83/x
  3. Step 3: Cross multiply
    31,377.61x = 47,072.21 × 10,318.83
  4. Step 4: Simplify right side
    31,377.61x = 485,729,904.60
  5. Step 5: Solve for x
    x = 485,729,904.60/31,377.61
  6. Step 6: Final answer
    x = 15,480.14

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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.