Home / 31,699.60-47,515.68-11,969.76

Finding the Fourth Proportional to 31,699.60, 47,515.68 and 11,969.76

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Solution

The fourth proportional to 31,699.60, 47,515.68 and 11,969.76 is: 17,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,699.60 : 47,515.68 = 11,969.76 : x
  2. Step 2: Convert to fraction form
    31,699.60/47,515.68 = 11,969.76/x
  3. Step 3: Cross multiply
    31,699.60x = 47,515.68 × 11,969.76
  4. Step 4: Simplify right side
    31,699.60x = 568,751,285.84
  5. Step 5: Solve for x
    x = 568,751,285.84/31,699.60
  6. Step 6: Final answer
    x = 17,941.91

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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.