Home / 20,606.05-28,436.01-11,653.22

Finding the Fourth Proportional to 20,606.05, 28,436.01 and 11,653.22

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Solution

The fourth proportional to 20,606.05, 28,436.01 and 11,653.22 is: 16,081.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.05 : 28,436.01 = 11,653.22 : x
  2. Step 2: Convert to fraction form
    20,606.05/28,436.01 = 11,653.22/x
  3. Step 3: Cross multiply
    20,606.05x = 28,436.01 × 11,653.22
  4. Step 4: Simplify right side
    20,606.05x = 331,371,013.44
  5. Step 5: Solve for x
    x = 331,371,013.44/20,606.05
  6. Step 6: Final answer
    x = 16,081.25

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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.