Home / 31,915.12-44,043.95-18,305.50

Finding the Fourth Proportional to 31,915.12, 44,043.95 and 18,305.50

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Solution

The fourth proportional to 31,915.12, 44,043.95 and 18,305.50 is: 25,262.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,915.12 : 44,043.95 = 18,305.50 : x
  2. Step 2: Convert to fraction form
    31,915.12/44,043.95 = 18,305.50/x
  3. Step 3: Cross multiply
    31,915.12x = 44,043.95 × 18,305.50
  4. Step 4: Simplify right side
    31,915.12x = 806,246,526.73
  5. Step 5: Solve for x
    x = 806,246,526.73/31,915.12
  6. Step 6: Final answer
    x = 25,262.21

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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.