Home / 27,981.89-38,604.44-16,651.86

Finding the Fourth Proportional to 27,981.89, 38,604.44 and 16,651.86

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Solution

The fourth proportional to 27,981.89, 38,604.44 and 16,651.86 is: 22,973.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981.89 : 38,604.44 = 16,651.86 : x
  2. Step 2: Convert to fraction form
    27,981.89/38,604.44 = 16,651.86/x
  3. Step 3: Cross multiply
    27,981.89x = 38,604.44 × 16,651.86
  4. Step 4: Simplify right side
    27,981.89x = 642,835,647.00
  5. Step 5: Solve for x
    x = 642,835,647.00/27,981.89
  6. Step 6: Final answer
    x = 22,973.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.