Home / 31,046.88-46,539.96-12,320.64

Finding the Fourth Proportional to 31,046.88, 46,539.96 and 12,320.64

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Solution

The fourth proportional to 31,046.88, 46,539.96 and 12,320.64 is: 18,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,046.88 : 46,539.96 = 12,320.64 : x
  2. Step 2: Convert to fraction form
    31,046.88/46,539.96 = 12,320.64/x
  3. Step 3: Cross multiply
    31,046.88x = 46,539.96 × 12,320.64
  4. Step 4: Simplify right side
    31,046.88x = 573,402,092.77
  5. Step 5: Solve for x
    x = 573,402,092.77/31,046.88
  6. Step 6: Final answer
    x = 18,468.91

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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.