Home / 20,592.36-28,422.16-11,645.10

Finding the Fourth Proportional to 20,592.36, 28,422.16 and 11,645.10

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Solution

The fourth proportional to 20,592.36, 28,422.16 and 11,645.10 is: 16,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.36 : 28,422.16 = 11,645.10 : x
  2. Step 2: Convert to fraction form
    20,592.36/28,422.16 = 11,645.10/x
  3. Step 3: Cross multiply
    20,592.36x = 28,422.16 × 11,645.10
  4. Step 4: Simplify right side
    20,592.36x = 330,978,866.30
  5. Step 5: Solve for x
    x = 330,978,866.30/20,592.36
  6. Step 6: Final answer
    x = 16,072.90

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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.