Home / 31,941.16-47,879.10-11,147.56

Finding the Fourth Proportional to 31,941.16, 47,879.10 and 11,147.56

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Solution

The fourth proportional to 31,941.16, 47,879.10 and 11,147.56 is: 16,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,941.16 : 47,879.10 = 11,147.56 : x
  2. Step 2: Convert to fraction form
    31,941.16/47,879.10 = 11,147.56/x
  3. Step 3: Cross multiply
    31,941.16x = 47,879.10 × 11,147.56
  4. Step 4: Simplify right side
    31,941.16x = 533,735,140.00
  5. Step 5: Solve for x
    x = 533,735,140.00/31,941.16
  6. Step 6: Final answer
    x = 16,709.95

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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.