Home / 20,893.07-28,832.28-11,461.57

Finding the Fourth Proportional to 20,893.07, 28,832.28 and 11,461.57

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Solution

The fourth proportional to 20,893.07, 28,832.28 and 11,461.57 is: 15,816.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.07 : 28,832.28 = 11,461.57 : x
  2. Step 2: Convert to fraction form
    20,893.07/28,832.28 = 11,461.57/x
  3. Step 3: Cross multiply
    20,893.07x = 28,832.28 × 11,461.57
  4. Step 4: Simplify right side
    20,893.07x = 330,463,195.48
  5. Step 5: Solve for x
    x = 330,463,195.48/20,893.07
  6. Step 6: Final answer
    x = 15,816.88

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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.