Home / 20,849.91-31,275.01-6,998.91

Finding the Fourth Proportional to 20,849.91, 31,275.01 and 6,998.91

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Solution

The fourth proportional to 20,849.91, 31,275.01 and 6,998.91 is: 10,498.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.91 : 31,275.01 = 6,998.91 : x
  2. Step 2: Convert to fraction form
    20,849.91/31,275.01 = 6,998.91/x
  3. Step 3: Cross multiply
    20,849.91x = 31,275.01 × 6,998.91
  4. Step 4: Simplify right side
    20,849.91x = 218,890,871.71
  5. Step 5: Solve for x
    x = 218,890,871.71/20,849.91
  6. Step 6: Final answer
    x = 10,498.41

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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.