Home / 20,207-27,885.84-11,823.68

Finding the Fourth Proportional to 20,207, 27,885.84 and 11,823.68

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Solution

The fourth proportional to 20,207, 27,885.84 and 11,823.68 is: 16,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207 : 27,885.84 = 11,823.68 : x
  2. Step 2: Convert to fraction form
    20,207/27,885.84 = 11,823.68/x
  3. Step 3: Cross multiply
    20,207x = 27,885.84 × 11,823.68
  4. Step 4: Simplify right side
    20,207x = 329,713,248.69
  5. Step 5: Solve for x
    x = 329,713,248.69/20,207
  6. Step 6: Final answer
    x = 16,316.78

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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.