Home / 20,437.58-28,204.26-11,485.82

Finding the Fourth Proportional to 20,437.58, 28,204.26 and 11,485.82

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Solution

The fourth proportional to 20,437.58, 28,204.26 and 11,485.82 is: 15,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.58 : 28,204.26 = 11,485.82 : x
  2. Step 2: Convert to fraction form
    20,437.58/28,204.26 = 11,485.82/x
  3. Step 3: Cross multiply
    20,437.58x = 28,204.26 × 11,485.82
  4. Step 4: Simplify right side
    20,437.58x = 323,949,053.59
  5. Step 5: Solve for x
    x = 323,949,053.59/20,437.58
  6. Step 6: Final answer
    x = 15,850.66

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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.