Home / 20,606.96-28,437.62-11,175.52

Finding the Fourth Proportional to 20,606.96, 28,437.62 and 11,175.52

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Solution

The fourth proportional to 20,606.96, 28,437.62 and 11,175.52 is: 15,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.96 : 28,437.62 = 11,175.52 : x
  2. Step 2: Convert to fraction form
    20,606.96/28,437.62 = 11,175.52/x
  3. Step 3: Cross multiply
    20,606.96x = 28,437.62 × 11,175.52
  4. Step 4: Simplify right side
    20,606.96x = 317,805,191.06
  5. Step 5: Solve for x
    x = 317,805,191.06/20,606.96
  6. Step 6: Final answer
    x = 15,422.23

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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.