Home / 31,129.20-46,684.80-13,595.04

Finding the Fourth Proportional to 31,129.20, 46,684.80 and 13,595.04

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Solution

The fourth proportional to 31,129.20, 46,684.80 and 13,595.04 is: 20,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129.20 : 46,684.80 = 13,595.04 : x
  2. Step 2: Convert to fraction form
    31,129.20/46,684.80 = 13,595.04/x
  3. Step 3: Cross multiply
    31,129.20x = 46,684.80 × 13,595.04
  4. Step 4: Simplify right side
    31,129.20x = 634,681,723.39
  5. Step 5: Solve for x
    x = 634,681,723.39/31,129.20
  6. Step 6: Final answer
    x = 20,388.63

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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.