Home / 31,191.56-46,800.75-10,138.05

Finding the Fourth Proportional to 31,191.56, 46,800.75 and 10,138.05

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Solution

The fourth proportional to 31,191.56, 46,800.75 and 10,138.05 is: 15,211.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,191.56 : 46,800.75 = 10,138.05 : x
  2. Step 2: Convert to fraction form
    31,191.56/46,800.75 = 10,138.05/x
  3. Step 3: Cross multiply
    31,191.56x = 46,800.75 × 10,138.05
  4. Step 4: Simplify right side
    31,191.56x = 474,468,493.70
  5. Step 5: Solve for x
    x = 474,468,493.70/31,191.56
  6. Step 6: Final answer
    x = 15,211.44

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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.