Home / 20,302.84-27,998.22-13,589.56

Finding the Fourth Proportional to 20,302.84, 27,998.22 and 13,589.56

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Solution

The fourth proportional to 20,302.84, 27,998.22 and 13,589.56 is: 18,740.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.84 : 27,998.22 = 13,589.56 : x
  2. Step 2: Convert to fraction form
    20,302.84/27,998.22 = 13,589.56/x
  3. Step 3: Cross multiply
    20,302.84x = 27,998.22 × 13,589.56
  4. Step 4: Simplify right side
    20,302.84x = 380,483,490.58
  5. Step 5: Solve for x
    x = 380,483,490.58/20,302.84
  6. Step 6: Final answer
    x = 18,740.41

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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.