Home / 31,627.90-43,646.55-18,198.89

Finding the Fourth Proportional to 31,627.90, 43,646.55 and 18,198.89

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Solution

The fourth proportional to 31,627.90, 43,646.55 and 18,198.89 is: 25,114.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,627.90 : 43,646.55 = 18,198.89 : x
  2. Step 2: Convert to fraction form
    31,627.90/43,646.55 = 18,198.89/x
  3. Step 3: Cross multiply
    31,627.90x = 43,646.55 × 18,198.89
  4. Step 4: Simplify right side
    31,627.90x = 794,318,639.53
  5. Step 5: Solve for x
    x = 794,318,639.53/31,627.90
  6. Step 6: Final answer
    x = 25,114.49

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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.