Home / 31,684.60-43,725.78-18,254.80

Finding the Fourth Proportional to 31,684.60, 43,725.78 and 18,254.80

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Solution

The fourth proportional to 31,684.60, 43,725.78 and 18,254.80 is: 25,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.60 : 43,725.78 = 18,254.80 : x
  2. Step 2: Convert to fraction form
    31,684.60/43,725.78 = 18,254.80/x
  3. Step 3: Cross multiply
    31,684.60x = 43,725.78 × 18,254.80
  4. Step 4: Simplify right side
    31,684.60x = 798,205,368.74
  5. Step 5: Solve for x
    x = 798,205,368.74/31,684.60
  6. Step 6: Final answer
    x = 25,192.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.