Home / 31,217.76-46,711.44-18,745.38

Finding the Fourth Proportional to 31,217.76, 46,711.44 and 18,745.38

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Solution

The fourth proportional to 31,217.76, 46,711.44 and 18,745.38 is: 28,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,217.76 : 46,711.44 = 18,745.38 : x
  2. Step 2: Convert to fraction form
    31,217.76/46,711.44 = 18,745.38/x
  3. Step 3: Cross multiply
    31,217.76x = 46,711.44 × 18,745.38
  4. Step 4: Simplify right side
    31,217.76x = 875,623,693.15
  5. Step 5: Solve for x
    x = 875,623,693.15/31,217.76
  6. Step 6: Final answer
    x = 28,048.90

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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.