Home / 15,922.91-21,923.42-14,446.68

Finding the Fourth Proportional to 15,922.91, 21,923.42 and 14,446.68

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Solution

The fourth proportional to 15,922.91, 21,923.42 and 14,446.68 is: 19,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922.91 : 21,923.42 = 14,446.68 : x
  2. Step 2: Convert to fraction form
    15,922.91/21,923.42 = 14,446.68/x
  3. Step 3: Cross multiply
    15,922.91x = 21,923.42 × 14,446.68
  4. Step 4: Simplify right side
    15,922.91x = 316,720,561.01
  5. Step 5: Solve for x
    x = 316,720,561.01/15,922.91
  6. Step 6: Final answer
    x = 19,890.88

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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.