Home / 20,259.59-27,945.84-13,453.93

Finding the Fourth Proportional to 20,259.59, 27,945.84 and 13,453.93

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Solution

The fourth proportional to 20,259.59, 27,945.84 and 13,453.93 is: 18,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.59 : 27,945.84 = 13,453.93 : x
  2. Step 2: Convert to fraction form
    20,259.59/27,945.84 = 13,453.93/x
  3. Step 3: Cross multiply
    20,259.59x = 27,945.84 × 13,453.93
  4. Step 4: Simplify right side
    20,259.59x = 375,981,235.42
  5. Step 5: Solve for x
    x = 375,981,235.42/20,259.59
  6. Step 6: Final answer
    x = 18,558.19

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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.