Home / 31,102.77-42,922.45-16,955.61

Finding the Fourth Proportional to 31,102.77, 42,922.45 and 16,955.61

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Solution

The fourth proportional to 31,102.77, 42,922.45 and 16,955.61 is: 23,399.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,102.77 : 42,922.45 = 16,955.61 : x
  2. Step 2: Convert to fraction form
    31,102.77/42,922.45 = 16,955.61/x
  3. Step 3: Cross multiply
    31,102.77x = 42,922.45 × 16,955.61
  4. Step 4: Simplify right side
    31,102.77x = 727,776,322.44
  5. Step 5: Solve for x
    x = 727,776,322.44/31,102.77
  6. Step 6: Final answer
    x = 23,399.08

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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.