Home / 20,348.24-28,079.22-11,273

Finding the Fourth Proportional to 20,348.24, 28,079.22 and 11,273

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Solution

The fourth proportional to 20,348.24, 28,079.22 and 11,273 is: 15,555.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.24 : 28,079.22 = 11,273 : x
  2. Step 2: Convert to fraction form
    20,348.24/28,079.22 = 11,273/x
  3. Step 3: Cross multiply
    20,348.24x = 28,079.22 × 11,273
  4. Step 4: Simplify right side
    20,348.24x = 316,537,047.06
  5. Step 5: Solve for x
    x = 316,537,047.06/20,348.24
  6. Step 6: Final answer
    x = 15,555.99

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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.