Home / 31,969.41-47,920.67-10,902.08

Finding the Fourth Proportional to 31,969.41, 47,920.67 and 10,902.08

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Solution

The fourth proportional to 31,969.41, 47,920.67 and 10,902.08 is: 16,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,969.41 : 47,920.67 = 10,902.08 : x
  2. Step 2: Convert to fraction form
    31,969.41/47,920.67 = 10,902.08/x
  3. Step 3: Cross multiply
    31,969.41x = 47,920.67 × 10,902.08
  4. Step 4: Simplify right side
    31,969.41x = 522,434,765.65
  5. Step 5: Solve for x
    x = 522,434,765.65/31,969.41
  6. Step 6: Final answer
    x = 16,341.71

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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.