Home / 31,154.71-46,709.43-12,429.13

Finding the Fourth Proportional to 31,154.71, 46,709.43 and 12,429.13

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Solution

The fourth proportional to 31,154.71, 46,709.43 and 12,429.13 is: 18,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.71 : 46,709.43 = 12,429.13 : x
  2. Step 2: Convert to fraction form
    31,154.71/46,709.43 = 12,429.13/x
  3. Step 3: Cross multiply
    31,154.71x = 46,709.43 × 12,429.13
  4. Step 4: Simplify right side
    31,154.71x = 580,557,577.70
  5. Step 5: Solve for x
    x = 580,557,577.70/31,154.71
  6. Step 6: Final answer
    x = 18,634.66

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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.