Home / 31,287.36-43,179.66-17,860.64

Finding the Fourth Proportional to 31,287.36, 43,179.66 and 17,860.64

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Solution

The fourth proportional to 31,287.36, 43,179.66 and 17,860.64 is: 24,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.36 : 43,179.66 = 17,860.64 : x
  2. Step 2: Convert to fraction form
    31,287.36/43,179.66 = 17,860.64/x
  3. Step 3: Cross multiply
    31,287.36x = 43,179.66 × 17,860.64
  4. Step 4: Simplify right side
    31,287.36x = 771,216,146.68
  5. Step 5: Solve for x
    x = 771,216,146.68/31,287.36
  6. Step 6: Final answer
    x = 24,649.45

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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.