Home / 20,606.80-28,437.05-11,653.97

Finding the Fourth Proportional to 20,606.80, 28,437.05 and 11,653.97

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Solution

The fourth proportional to 20,606.80, 28,437.05 and 11,653.97 is: 16,082.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.80 : 28,437.05 = 11,653.97 : x
  2. Step 2: Convert to fraction form
    20,606.80/28,437.05 = 11,653.97/x
  3. Step 3: Cross multiply
    20,606.80x = 28,437.05 × 11,653.97
  4. Step 4: Simplify right side
    20,606.80x = 331,404,327.13
  5. Step 5: Solve for x
    x = 331,404,327.13/20,606.80
  6. Step 6: Final answer
    x = 16,082.28

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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.