Home / 20,049.90-27,667.86-12,964.02

Finding the Fourth Proportional to 20,049.90, 27,667.86 and 12,964.02

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Solution

The fourth proportional to 20,049.90, 27,667.86 and 12,964.02 is: 17,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.90 : 27,667.86 = 12,964.02 : x
  2. Step 2: Convert to fraction form
    20,049.90/27,667.86 = 12,964.02/x
  3. Step 3: Cross multiply
    20,049.90x = 27,667.86 × 12,964.02
  4. Step 4: Simplify right side
    20,049.90x = 358,686,690.40
  5. Step 5: Solve for x
    x = 358,686,690.40/20,049.90
  6. Step 6: Final answer
    x = 17,889.70

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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.