Home / 31,633.04-47,431.61-12,891.14

Finding the Fourth Proportional to 31,633.04, 47,431.61 and 12,891.14

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Solution

The fourth proportional to 31,633.04, 47,431.61 and 12,891.14 is: 19,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,633.04 : 47,431.61 = 12,891.14 : x
  2. Step 2: Convert to fraction form
    31,633.04/47,431.61 = 12,891.14/x
  3. Step 3: Cross multiply
    31,633.04x = 47,431.61 × 12,891.14
  4. Step 4: Simplify right side
    31,633.04x = 611,447,524.94
  5. Step 5: Solve for x
    x = 611,447,524.94/31,633.04
  6. Step 6: Final answer
    x = 19,329.39

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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.