Home / 20,750.07-31,120.55-5,955.70

Finding the Fourth Proportional to 20,750.07, 31,120.55 and 5,955.70

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Solution

The fourth proportional to 20,750.07, 31,120.55 and 5,955.70 is: 8,932.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.07 : 31,120.55 = 5,955.70 : x
  2. Step 2: Convert to fraction form
    20,750.07/31,120.55 = 5,955.70/x
  3. Step 3: Cross multiply
    20,750.07x = 31,120.55 × 5,955.70
  4. Step 4: Simplify right side
    20,750.07x = 185,344,753.77
  5. Step 5: Solve for x
    x = 185,344,753.77/20,750.07
  6. Step 6: Final answer
    x = 8,932.25

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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.