Home / 20,937.28-28,893.36-11,506.24

Finding the Fourth Proportional to 20,937.28, 28,893.36 and 11,506.24

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Solution

The fourth proportional to 20,937.28, 28,893.36 and 11,506.24 is: 15,878.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.28 : 28,893.36 = 11,506.24 : x
  2. Step 2: Convert to fraction form
    20,937.28/28,893.36 = 11,506.24/x
  3. Step 3: Cross multiply
    20,937.28x = 28,893.36 × 11,506.24
  4. Step 4: Simplify right side
    20,937.28x = 332,453,934.57
  5. Step 5: Solve for x
    x = 332,453,934.57/20,937.28
  6. Step 6: Final answer
    x = 15,878.56

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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.