Home / 31,028.28-46,545.30-12,561.72

Finding the Fourth Proportional to 31,028.28, 46,545.30 and 12,561.72

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Solution

The fourth proportional to 31,028.28, 46,545.30 and 12,561.72 is: 18,843.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,028.28 : 46,545.30 = 12,561.72 : x
  2. Step 2: Convert to fraction form
    31,028.28/46,545.30 = 12,561.72/x
  3. Step 3: Cross multiply
    31,028.28x = 46,545.30 × 12,561.72
  4. Step 4: Simplify right side
    31,028.28x = 584,689,025.92
  5. Step 5: Solve for x
    x = 584,689,025.92/31,028.28
  6. Step 6: Final answer
    x = 18,843.75

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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.