Home / 31,335.12-46,987.56-18,190.80

Finding the Fourth Proportional to 31,335.12, 46,987.56 and 18,190.80

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Solution

The fourth proportional to 31,335.12, 46,987.56 and 18,190.80 is: 27,277.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,335.12 : 46,987.56 = 18,190.80 : x
  2. Step 2: Convert to fraction form
    31,335.12/46,987.56 = 18,190.80/x
  3. Step 3: Cross multiply
    31,335.12x = 46,987.56 × 18,190.80
  4. Step 4: Simplify right side
    31,335.12x = 854,741,306.45
  5. Step 5: Solve for x
    x = 854,741,306.45/31,335.12
  6. Step 6: Final answer
    x = 27,277.42

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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.