Home / 20,712.84-28,593.44-12,212.29

Finding the Fourth Proportional to 20,712.84, 28,593.44 and 12,212.29

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Solution

The fourth proportional to 20,712.84, 28,593.44 and 12,212.29 is: 16,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.84 : 28,593.44 = 12,212.29 : x
  2. Step 2: Convert to fraction form
    20,712.84/28,593.44 = 12,212.29/x
  3. Step 3: Cross multiply
    20,712.84x = 28,593.44 × 12,212.29
  4. Step 4: Simplify right side
    20,712.84x = 349,191,381.38
  5. Step 5: Solve for x
    x = 349,191,381.38/20,712.84
  6. Step 6: Final answer
    x = 16,858.69

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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.