Home / 31,992.09-47,972.04-18,669.63

Finding the Fourth Proportional to 31,992.09, 47,972.04 and 18,669.63

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Solution

The fourth proportional to 31,992.09, 47,972.04 and 18,669.63 is: 27,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,992.09 : 47,972.04 = 18,669.63 : x
  2. Step 2: Convert to fraction form
    31,992.09/47,972.04 = 18,669.63/x
  3. Step 3: Cross multiply
    31,992.09x = 47,972.04 × 18,669.63
  4. Step 4: Simplify right side
    31,992.09x = 895,620,237.15
  5. Step 5: Solve for x
    x = 895,620,237.15/31,992.09
  6. Step 6: Final answer
    x = 27,995.05

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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.