Home / 30,893.22-42,629.49-18,957.06

Finding the Fourth Proportional to 30,893.22, 42,629.49 and 18,957.06

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Solution

The fourth proportional to 30,893.22, 42,629.49 and 18,957.06 is: 26,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,893.22 : 42,629.49 = 18,957.06 : x
  2. Step 2: Convert to fraction form
    30,893.22/42,629.49 = 18,957.06/x
  3. Step 3: Cross multiply
    30,893.22x = 42,629.49 × 18,957.06
  4. Step 4: Simplify right side
    30,893.22x = 808,129,799.70
  5. Step 5: Solve for x
    x = 808,129,799.70/30,893.22
  6. Step 6: Final answer
    x = 26,158.81

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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.