Home / 31,854.72-43,954.20-17,705.64

Finding the Fourth Proportional to 31,854.72, 43,954.20 and 17,705.64

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Solution

The fourth proportional to 31,854.72, 43,954.20 and 17,705.64 is: 24,430.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,854.72 : 43,954.20 = 17,705.64 : x
  2. Step 2: Convert to fraction form
    31,854.72/43,954.20 = 17,705.64/x
  3. Step 3: Cross multiply
    31,854.72x = 43,954.20 × 17,705.64
  4. Step 4: Simplify right side
    31,854.72x = 778,237,241.69
  5. Step 5: Solve for x
    x = 778,237,241.69/31,854.72
  6. Step 6: Final answer
    x = 24,430.83

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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.