Home / 31,611.19-47,418.60-11,889.91

Finding the Fourth Proportional to 31,611.19, 47,418.60 and 11,889.91

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Solution

The fourth proportional to 31,611.19, 47,418.60 and 11,889.91 is: 17,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,611.19 : 47,418.60 = 11,889.91 : x
  2. Step 2: Convert to fraction form
    31,611.19/47,418.60 = 11,889.91/x
  3. Step 3: Cross multiply
    31,611.19x = 47,418.60 × 11,889.91
  4. Step 4: Simplify right side
    31,611.19x = 563,802,886.33
  5. Step 5: Solve for x
    x = 563,802,886.33/31,611.19
  6. Step 6: Final answer
    x = 17,835.55

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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.