Home / 31,345.43-47,017.94-7,971.66

Finding the Fourth Proportional to 31,345.43, 47,017.94 and 7,971.66

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Solution

The fourth proportional to 31,345.43, 47,017.94 and 7,971.66 is: 11,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,345.43 : 47,017.94 = 7,971.66 : x
  2. Step 2: Convert to fraction form
    31,345.43/47,017.94 = 7,971.66/x
  3. Step 3: Cross multiply
    31,345.43x = 47,017.94 × 7,971.66
  4. Step 4: Simplify right side
    31,345.43x = 374,810,991.72
  5. Step 5: Solve for x
    x = 374,810,991.72/31,345.43
  6. Step 6: Final answer
    x = 11,957.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.