Home / 20,984.01-28,959.57-11,554.26

Finding the Fourth Proportional to 20,984.01, 28,959.57 and 11,554.26

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Solution

The fourth proportional to 20,984.01, 28,959.57 and 11,554.26 is: 15,945.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.01 : 28,959.57 = 11,554.26 : x
  2. Step 2: Convert to fraction form
    20,984.01/28,959.57 = 11,554.26/x
  3. Step 3: Cross multiply
    20,984.01x = 28,959.57 × 11,554.26
  4. Step 4: Simplify right side
    20,984.01x = 334,606,401.27
  5. Step 5: Solve for x
    x = 334,606,401.27/20,984.01
  6. Step 6: Final answer
    x = 15,945.78

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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.