Home / 31,530.30-47,295.33-10,471.95

Finding the Fourth Proportional to 31,530.30, 47,295.33 and 10,471.95

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Solution

The fourth proportional to 31,530.30, 47,295.33 and 10,471.95 is: 15,707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.30 : 47,295.33 = 10,471.95 : x
  2. Step 2: Convert to fraction form
    31,530.30/47,295.33 = 10,471.95/x
  3. Step 3: Cross multiply
    31,530.30x = 47,295.33 × 10,471.95
  4. Step 4: Simplify right side
    31,530.30x = 495,274,291.72
  5. Step 5: Solve for x
    x = 495,274,291.72/31,530.30
  6. Step 6: Final answer
    x = 15,707.89

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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.