Home / 31,918.84-44,049.90-18,485.80

Finding the Fourth Proportional to 31,918.84, 44,049.90 and 18,485.80

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Solution

The fourth proportional to 31,918.84, 44,049.90 and 18,485.80 is: 25,511.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,918.84 : 44,049.90 = 18,485.80 : x
  2. Step 2: Convert to fraction form
    31,918.84/44,049.90 = 18,485.80/x
  3. Step 3: Cross multiply
    31,918.84x = 44,049.90 × 18,485.80
  4. Step 4: Simplify right side
    31,918.84x = 814,297,641.42
  5. Step 5: Solve for x
    x = 814,297,641.42/31,918.84
  6. Step 6: Final answer
    x = 25,511.50

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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.