Home / 31,313.35-46,975.20-15,519.12

Finding the Fourth Proportional to 31,313.35, 46,975.20 and 15,519.12

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Solution

The fourth proportional to 31,313.35, 46,975.20 and 15,519.12 is: 23,281.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.35 : 46,975.20 = 15,519.12 : x
  2. Step 2: Convert to fraction form
    31,313.35/46,975.20 = 15,519.12/x
  3. Step 3: Cross multiply
    31,313.35x = 46,975.20 × 15,519.12
  4. Step 4: Simplify right side
    31,313.35x = 729,013,765.82
  5. Step 5: Solve for x
    x = 729,013,765.82/31,313.35
  6. Step 6: Final answer
    x = 23,281.24

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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.