Home / 31,824.86-43,913.42-18,393.51

Finding the Fourth Proportional to 31,824.86, 43,913.42 and 18,393.51

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Solution

The fourth proportional to 31,824.86, 43,913.42 and 18,393.51 is: 25,380.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,824.86 : 43,913.42 = 18,393.51 : x
  2. Step 2: Convert to fraction form
    31,824.86/43,913.42 = 18,393.51/x
  3. Step 3: Cross multiply
    31,824.86x = 43,913.42 × 18,393.51
  4. Step 4: Simplify right side
    31,824.86x = 807,721,929.90
  5. Step 5: Solve for x
    x = 807,721,929.90/31,824.86
  6. Step 6: Final answer
    x = 25,380.22

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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.