Home / 20,588.24-28,412.34-11,635.56

Finding the Fourth Proportional to 20,588.24, 28,412.34 and 11,635.56

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Solution

The fourth proportional to 20,588.24, 28,412.34 and 11,635.56 is: 16,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.24 : 28,412.34 = 11,635.56 : x
  2. Step 2: Convert to fraction form
    20,588.24/28,412.34 = 11,635.56/x
  3. Step 3: Cross multiply
    20,588.24x = 28,412.34 × 11,635.56
  4. Step 4: Simplify right side
    20,588.24x = 330,593,486.81
  5. Step 5: Solve for x
    x = 330,593,486.81/20,588.24
  6. Step 6: Final answer
    x = 16,057.39

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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.