Home / 20,001.88-27,607.91-12,443.92

Finding the Fourth Proportional to 20,001.88, 27,607.91 and 12,443.92

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Solution

The fourth proportional to 20,001.88, 27,607.91 and 12,443.92 is: 17,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.88 : 27,607.91 = 12,443.92 : x
  2. Step 2: Convert to fraction form
    20,001.88/27,607.91 = 12,443.92/x
  3. Step 3: Cross multiply
    20,001.88x = 27,607.91 × 12,443.92
  4. Step 4: Simplify right side
    20,001.88x = 343,550,623.41
  5. Step 5: Solve for x
    x = 343,550,623.41/20,001.88
  6. Step 6: Final answer
    x = 17,175.92

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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.