Home / 31,151.40-46,727.10-10,091.40

Finding the Fourth Proportional to 31,151.40, 46,727.10 and 10,091.40

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Solution

The fourth proportional to 31,151.40, 46,727.10 and 10,091.40 is: 15,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,151.40 : 46,727.10 = 10,091.40 : x
  2. Step 2: Convert to fraction form
    31,151.40/46,727.10 = 10,091.40/x
  3. Step 3: Cross multiply
    31,151.40x = 46,727.10 × 10,091.40
  4. Step 4: Simplify right side
    31,151.40x = 471,541,856.94
  5. Step 5: Solve for x
    x = 471,541,856.94/31,151.40
  6. Step 6: Final answer
    x = 15,137.10

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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.