Home / 20,213-27,894.12-11,829.68

Finding the Fourth Proportional to 20,213, 27,894.12 and 11,829.68

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Solution

The fourth proportional to 20,213, 27,894.12 and 11,829.68 is: 16,325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213 : 27,894.12 = 11,829.68 : x
  2. Step 2: Convert to fraction form
    20,213/27,894.12 = 11,829.68/x
  3. Step 3: Cross multiply
    20,213x = 27,894.12 × 11,829.68
  4. Step 4: Simplify right side
    20,213x = 329,978,513.48
  5. Step 5: Solve for x
    x = 329,978,513.48/20,213
  6. Step 6: Final answer
    x = 16,325.06

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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.