Home / 22,389.06-30,891.30-14,421.68

Finding the Fourth Proportional to 22,389.06, 30,891.30 and 14,421.68

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Solution

The fourth proportional to 22,389.06, 30,891.30 and 14,421.68 is: 19,898.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,389.06 : 30,891.30 = 14,421.68 : x
  2. Step 2: Convert to fraction form
    22,389.06/30,891.30 = 14,421.68/x
  3. Step 3: Cross multiply
    22,389.06x = 30,891.30 × 14,421.68
  4. Step 4: Simplify right side
    22,389.06x = 445,504,443.38
  5. Step 5: Solve for x
    x = 445,504,443.38/22,389.06
  6. Step 6: Final answer
    x = 19,898.31

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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.