Home / 31,242.41-43,102.33-19,909.80

Finding the Fourth Proportional to 31,242.41, 43,102.33 and 19,909.80

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Solution

The fourth proportional to 31,242.41, 43,102.33 and 19,909.80 is: 27,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,242.41 : 43,102.33 = 19,909.80 : x
  2. Step 2: Convert to fraction form
    31,242.41/43,102.33 = 19,909.80/x
  3. Step 3: Cross multiply
    31,242.41x = 43,102.33 × 19,909.80
  4. Step 4: Simplify right side
    31,242.41x = 858,158,720.06
  5. Step 5: Solve for x
    x = 858,158,720.06/31,242.41
  6. Step 6: Final answer
    x = 27,467.75

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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.