Home / 31,163.71-42,990.98-22,652.64

Finding the Fourth Proportional to 31,163.71, 42,990.98 and 22,652.64

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Solution

The fourth proportional to 31,163.71, 42,990.98 and 22,652.64 is: 31,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,163.71 : 42,990.98 = 22,652.64 : x
  2. Step 2: Convert to fraction form
    31,163.71/42,990.98 = 22,652.64/x
  3. Step 3: Cross multiply
    31,163.71x = 42,990.98 × 22,652.64
  4. Step 4: Simplify right side
    31,163.71x = 973,859,193.19
  5. Step 5: Solve for x
    x = 973,859,193.19/31,163.71
  6. Step 6: Final answer
    x = 31,249.78

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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.