Home / 20,691.84-31,032.63-5,900.88

Finding the Fourth Proportional to 20,691.84, 31,032.63 and 5,900.88

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Solution

The fourth proportional to 20,691.84, 31,032.63 and 5,900.88 is: 8,849.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691.84 : 31,032.63 = 5,900.88 : x
  2. Step 2: Convert to fraction form
    20,691.84/31,032.63 = 5,900.88/x
  3. Step 3: Cross multiply
    20,691.84x = 31,032.63 × 5,900.88
  4. Step 4: Simplify right side
    20,691.84x = 183,119,942.09
  5. Step 5: Solve for x
    x = 183,119,942.09/20,691.84
  6. Step 6: Final answer
    x = 8,849.86

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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.