Home / 20,437.58-28,202.95-11,940.49

Finding the Fourth Proportional to 20,437.58, 28,202.95 and 11,940.49

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Solution

The fourth proportional to 20,437.58, 28,202.95 and 11,940.49 is: 16,477.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.58 : 28,202.95 = 11,940.49 : x
  2. Step 2: Convert to fraction form
    20,437.58/28,202.95 = 11,940.49/x
  3. Step 3: Cross multiply
    20,437.58x = 28,202.95 × 11,940.49
  4. Step 4: Simplify right side
    20,437.58x = 336,756,942.09
  5. Step 5: Solve for x
    x = 336,756,942.09/20,437.58
  6. Step 6: Final answer
    x = 16,477.34

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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.