Home / 21,962.82-30,305.70-12,401.13

Finding the Fourth Proportional to 21,962.82, 30,305.70 and 12,401.13

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Solution

The fourth proportional to 21,962.82, 30,305.70 and 12,401.13 is: 17,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,962.82 : 30,305.70 = 12,401.13 : x
  2. Step 2: Convert to fraction form
    21,962.82/30,305.70 = 12,401.13/x
  3. Step 3: Cross multiply
    21,962.82x = 30,305.70 × 12,401.13
  4. Step 4: Simplify right side
    21,962.82x = 375,824,925.44
  5. Step 5: Solve for x
    x = 375,824,925.44/21,962.82
  6. Step 6: Final answer
    x = 17,111.87

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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.