Home / 31,825.01-43,913.63-18,393.66

Finding the Fourth Proportional to 31,825.01, 43,913.63 and 18,393.66

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Solution

The fourth proportional to 31,825.01, 43,913.63 and 18,393.66 is: 25,380.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,825.01 : 43,913.63 = 18,393.66 : x
  2. Step 2: Convert to fraction form
    31,825.01/43,913.63 = 18,393.66/x
  3. Step 3: Cross multiply
    31,825.01x = 43,913.63 × 18,393.66
  4. Step 4: Simplify right side
    31,825.01x = 807,732,287.62
  5. Step 5: Solve for x
    x = 807,732,287.62/31,825.01
  6. Step 6: Final answer
    x = 25,380.43

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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.