Home / 31,475.38-47,206.77-20,197.33

Finding the Fourth Proportional to 31,475.38, 47,206.77 and 20,197.33

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Solution

The fourth proportional to 31,475.38, 47,206.77 and 20,197.33 is: 30,291.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.38 : 47,206.77 = 20,197.33 : x
  2. Step 2: Convert to fraction form
    31,475.38/47,206.77 = 20,197.33/x
  3. Step 3: Cross multiply
    31,475.38x = 47,206.77 × 20,197.33
  4. Step 4: Simplify right side
    31,475.38x = 953,450,711.92
  5. Step 5: Solve for x
    x = 953,450,711.92/31,475.38
  6. Step 6: Final answer
    x = 30,291.95

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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.