Home / 31,590.68-43,603.52-18,163.41

Finding the Fourth Proportional to 31,590.68, 43,603.52 and 18,163.41

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Solution

The fourth proportional to 31,590.68, 43,603.52 and 18,163.41 is: 25,070.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590.68 : 43,603.52 = 18,163.41 : x
  2. Step 2: Convert to fraction form
    31,590.68/43,603.52 = 18,163.41/x
  3. Step 3: Cross multiply
    31,590.68x = 43,603.52 × 18,163.41
  4. Step 4: Simplify right side
    31,590.68x = 791,988,356.87
  5. Step 5: Solve for x
    x = 791,988,356.87/31,590.68
  6. Step 6: Final answer
    x = 25,070.32

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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.