Home / 31,590.08-47,361.76-19,107.09

Finding the Fourth Proportional to 31,590.08, 47,361.76 and 19,107.09

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Solution

The fourth proportional to 31,590.08, 47,361.76 and 19,107.09 is: 28,646.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590.08 : 47,361.76 = 19,107.09 : x
  2. Step 2: Convert to fraction form
    31,590.08/47,361.76 = 19,107.09/x
  3. Step 3: Cross multiply
    31,590.08x = 47,361.76 × 19,107.09
  4. Step 4: Simplify right side
    31,590.08x = 904,945,470.59
  5. Step 5: Solve for x
    x = 904,945,470.59/31,590.08
  6. Step 6: Final answer
    x = 28,646.51

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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.