Home / 31,084.21-42,894.75-17,653.72

Finding the Fourth Proportional to 31,084.21, 42,894.75 and 17,653.72

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Solution

The fourth proportional to 31,084.21, 42,894.75 and 17,653.72 is: 24,361.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,084.21 : 42,894.75 = 17,653.72 : x
  2. Step 2: Convert to fraction form
    31,084.21/42,894.75 = 17,653.72/x
  3. Step 3: Cross multiply
    31,084.21x = 42,894.75 × 17,653.72
  4. Step 4: Simplify right side
    31,084.21x = 757,251,905.97
  5. Step 5: Solve for x
    x = 757,251,905.97/31,084.21
  6. Step 6: Final answer
    x = 24,361.30

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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.