Home / 20,063.08-27,689.70-11,679.40

Finding the Fourth Proportional to 20,063.08, 27,689.70 and 11,679.40

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Solution

The fourth proportional to 20,063.08, 27,689.70 and 11,679.40 is: 16,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.08 : 27,689.70 = 11,679.40 : x
  2. Step 2: Convert to fraction form
    20,063.08/27,689.70 = 11,679.40/x
  3. Step 3: Cross multiply
    20,063.08x = 27,689.70 × 11,679.40
  4. Step 4: Simplify right side
    20,063.08x = 323,399,082.18
  5. Step 5: Solve for x
    x = 323,399,082.18/20,063.08
  6. Step 6: Final answer
    x = 16,119.11

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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.