Home / 31,611.40-43,603.32-18,855.52

Finding the Fourth Proportional to 31,611.40, 43,603.32 and 18,855.52

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Solution

The fourth proportional to 31,611.40, 43,603.32 and 18,855.52 is: 26,008.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,611.40 : 43,603.32 = 18,855.52 : x
  2. Step 2: Convert to fraction form
    31,611.40/43,603.32 = 18,855.52/x
  3. Step 3: Cross multiply
    31,611.40x = 43,603.32 × 18,855.52
  4. Step 4: Simplify right side
    31,611.40x = 822,163,272.33
  5. Step 5: Solve for x
    x = 822,163,272.33/31,611.40
  6. Step 6: Final answer
    x = 26,008.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.