Home / 31,107.27-46,680.26-12,639.27

Finding the Fourth Proportional to 31,107.27, 46,680.26 and 12,639.27

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Solution

The fourth proportional to 31,107.27, 46,680.26 and 12,639.27 is: 18,966.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107.27 : 46,680.26 = 12,639.27 : x
  2. Step 2: Convert to fraction form
    31,107.27/46,680.26 = 12,639.27/x
  3. Step 3: Cross multiply
    31,107.27x = 46,680.26 × 12,639.27
  4. Step 4: Simplify right side
    31,107.27x = 590,004,346.61
  5. Step 5: Solve for x
    x = 590,004,346.61/31,107.27
  6. Step 6: Final answer
    x = 18,966.77

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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.