Home / 20,752.88-28,638.36-11,801.36

Finding the Fourth Proportional to 20,752.88, 28,638.36 and 11,801.36

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Solution

The fourth proportional to 20,752.88, 28,638.36 and 11,801.36 is: 16,285.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.88 : 28,638.36 = 11,801.36 : x
  2. Step 2: Convert to fraction form
    20,752.88/28,638.36 = 11,801.36/x
  3. Step 3: Cross multiply
    20,752.88x = 28,638.36 × 11,801.36
  4. Step 4: Simplify right side
    20,752.88x = 337,971,596.17
  5. Step 5: Solve for x
    x = 337,971,596.17/20,752.88
  6. Step 6: Final answer
    x = 16,285.53

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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.