Home / 31,869.51-47,813.49-12,149.60

Finding the Fourth Proportional to 31,869.51, 47,813.49 and 12,149.60

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Solution

The fourth proportional to 31,869.51, 47,813.49 and 12,149.60 is: 18,227.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,869.51 : 47,813.49 = 12,149.60 : x
  2. Step 2: Convert to fraction form
    31,869.51/47,813.49 = 12,149.60/x
  3. Step 3: Cross multiply
    31,869.51x = 47,813.49 × 12,149.60
  4. Step 4: Simplify right side
    31,869.51x = 580,914,539.04
  5. Step 5: Solve for x
    x = 580,914,539.04/31,869.51
  6. Step 6: Final answer
    x = 18,227.91

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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.