Home / 31,703.42-43,747.66-18,954.08

Finding the Fourth Proportional to 31,703.42, 43,747.66 and 18,954.08

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Solution

The fourth proportional to 31,703.42, 43,747.66 and 18,954.08 is: 26,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,703.42 : 43,747.66 = 18,954.08 : x
  2. Step 2: Convert to fraction form
    31,703.42/43,747.66 = 18,954.08/x
  3. Step 3: Cross multiply
    31,703.42x = 43,747.66 × 18,954.08
  4. Step 4: Simplify right side
    31,703.42x = 829,196,647.45
  5. Step 5: Solve for x
    x = 829,196,647.45/31,703.42
  6. Step 6: Final answer
    x = 26,154.80

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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.