Home / 31,701.60-47,518.68-11,971.76

Finding the Fourth Proportional to 31,701.60, 47,518.68 and 11,971.76

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Solution

The fourth proportional to 31,701.60, 47,518.68 and 11,971.76 is: 17,944.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,701.60 : 47,518.68 = 11,971.76 : x
  2. Step 2: Convert to fraction form
    31,701.60/47,518.68 = 11,971.76/x
  3. Step 3: Cross multiply
    31,701.60x = 47,518.68 × 11,971.76
  4. Step 4: Simplify right side
    31,701.60x = 568,882,232.48
  5. Step 5: Solve for x
    x = 568,882,232.48/31,701.60
  6. Step 6: Final answer
    x = 17,944.91

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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.