Home / 20,544.09-28,368.12-13,003.73

Finding the Fourth Proportional to 20,544.09, 28,368.12 and 13,003.73

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Solution

The fourth proportional to 20,544.09, 28,368.12 and 13,003.73 is: 17,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.09 : 28,368.12 = 13,003.73 : x
  2. Step 2: Convert to fraction form
    20,544.09/28,368.12 = 13,003.73/x
  3. Step 3: Cross multiply
    20,544.09x = 28,368.12 × 13,003.73
  4. Step 4: Simplify right side
    20,544.09x = 368,891,231.25
  5. Step 5: Solve for x
    x = 368,891,231.25/20,544.09
  6. Step 6: Final answer
    x = 17,956.08

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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.