Home / 31,851.12-43,955.71-18,241.66

Finding the Fourth Proportional to 31,851.12, 43,955.71 and 18,241.66

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Solution

The fourth proportional to 31,851.12, 43,955.71 and 18,241.66 is: 25,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,851.12 : 43,955.71 = 18,241.66 : x
  2. Step 2: Convert to fraction form
    31,851.12/43,955.71 = 18,241.66/x
  3. Step 3: Cross multiply
    31,851.12x = 43,955.71 × 18,241.66
  4. Step 4: Simplify right side
    31,851.12x = 801,824,981.58
  5. Step 5: Solve for x
    x = 801,824,981.58/31,851.12
  6. Step 6: Final answer
    x = 25,174.15

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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.