Home / 20,750.14-31,121.97-7,599.45

Finding the Fourth Proportional to 20,750.14, 31,121.97 and 7,599.45

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Solution

The fourth proportional to 20,750.14, 31,121.97 and 7,599.45 is: 11,397.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.14 : 31,121.97 = 7,599.45 : x
  2. Step 2: Convert to fraction form
    20,750.14/31,121.97 = 7,599.45/x
  3. Step 3: Cross multiply
    20,750.14x = 31,121.97 × 7,599.45
  4. Step 4: Simplify right side
    20,750.14x = 236,509,854.92
  5. Step 5: Solve for x
    x = 236,509,854.92/20,750.14
  6. Step 6: Final answer
    x = 11,397.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.