Home / 20,598.36-28,425.39-11,645.52

Finding the Fourth Proportional to 20,598.36, 28,425.39 and 11,645.52

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Solution

The fourth proportional to 20,598.36, 28,425.39 and 11,645.52 is: 16,070.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.36 : 28,425.39 = 11,645.52 : x
  2. Step 2: Convert to fraction form
    20,598.36/28,425.39 = 11,645.52/x
  3. Step 3: Cross multiply
    20,598.36x = 28,425.39 × 11,645.52
  4. Step 4: Simplify right side
    20,598.36x = 331,028,447.75
  5. Step 5: Solve for x
    x = 331,028,447.75/20,598.36
  6. Step 6: Final answer
    x = 16,070.62

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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.