Home / 19,821.99-29,674.67-13,231.83

Finding the Fourth Proportional to 19,821.99, 29,674.67 and 13,231.83

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Solution

The fourth proportional to 19,821.99, 29,674.67 and 13,231.83 is: 19,808.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.99 : 29,674.67 = 13,231.83 : x
  2. Step 2: Convert to fraction form
    19,821.99/29,674.67 = 13,231.83/x
  3. Step 3: Cross multiply
    19,821.99x = 29,674.67 × 13,231.83
  4. Step 4: Simplify right side
    19,821.99x = 392,650,176.22
  5. Step 5: Solve for x
    x = 392,650,176.22/19,821.99
  6. Step 6: Final answer
    x = 19,808.82

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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.