Home / 31,783.40-43,858.66-18,348.52

Finding the Fourth Proportional to 31,783.40, 43,858.66 and 18,348.52

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Solution

The fourth proportional to 31,783.40, 43,858.66 and 18,348.52 is: 25,319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,783.40 : 43,858.66 = 18,348.52 : x
  2. Step 2: Convert to fraction form
    31,783.40/43,858.66 = 18,348.52/x
  3. Step 3: Cross multiply
    31,783.40x = 43,858.66 × 18,348.52
  4. Step 4: Simplify right side
    31,783.40x = 804,741,500.18
  5. Step 5: Solve for x
    x = 804,741,500.18/31,783.40
  6. Step 6: Final answer
    x = 25,319.55

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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.