Home / 31,611.12-47,419.11-11,889.24

Finding the Fourth Proportional to 31,611.12, 47,419.11 and 11,889.24

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Solution

The fourth proportional to 31,611.12, 47,419.11 and 11,889.24 is: 17,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,611.12 : 47,419.11 = 11,889.24 : x
  2. Step 2: Convert to fraction form
    31,611.12/47,419.11 = 11,889.24/x
  3. Step 3: Cross multiply
    31,611.12x = 47,419.11 × 11,889.24
  4. Step 4: Simplify right side
    31,611.12x = 563,777,179.38
  5. Step 5: Solve for x
    x = 563,777,179.38/31,611.12
  6. Step 6: Final answer
    x = 17,834.77

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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.