Home / 20,001.40-27,607.43-12,443.22

Finding the Fourth Proportional to 20,001.40, 27,607.43 and 12,443.22

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Solution

The fourth proportional to 20,001.40, 27,607.43 and 12,443.22 is: 17,175.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.40 : 27,607.43 = 12,443.22 : x
  2. Step 2: Convert to fraction form
    20,001.40/27,607.43 = 12,443.22/x
  3. Step 3: Cross multiply
    20,001.40x = 27,607.43 × 12,443.22
  4. Step 4: Simplify right side
    20,001.40x = 343,525,262.91
  5. Step 5: Solve for x
    x = 343,525,262.91/20,001.40
  6. Step 6: Final answer
    x = 17,175.06

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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.