Home / 31,636.62-47,431.30-19,153.64

Finding the Fourth Proportional to 31,636.62, 47,431.30 and 19,153.64

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Solution

The fourth proportional to 31,636.62, 47,431.30 and 19,153.64 is: 28,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,636.62 : 47,431.30 = 19,153.64 : x
  2. Step 2: Convert to fraction form
    31,636.62/47,431.30 = 19,153.64/x
  3. Step 3: Cross multiply
    31,636.62x = 47,431.30 × 19,153.64
  4. Step 4: Simplify right side
    31,636.62x = 908,482,044.93
  5. Step 5: Solve for x
    x = 908,482,044.93/31,636.62
  6. Step 6: Final answer
    x = 28,716.15

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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.