Home / 20,260.50-27,962.73-11,877

Finding the Fourth Proportional to 20,260.50, 27,962.73 and 11,877

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Solution

The fourth proportional to 20,260.50, 27,962.73 and 11,877 is: 16,392.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.50 : 27,962.73 = 11,877 : x
  2. Step 2: Convert to fraction form
    20,260.50/27,962.73 = 11,877/x
  3. Step 3: Cross multiply
    20,260.50x = 27,962.73 × 11,877
  4. Step 4: Simplify right side
    20,260.50x = 332,113,344.21
  5. Step 5: Solve for x
    x = 332,113,344.21/20,260.50
  6. Step 6: Final answer
    x = 16,392.16

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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.