Home / 22,073.45-30,463.09-12,642.21

Finding the Fourth Proportional to 22,073.45, 30,463.09 and 12,642.21

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Solution

The fourth proportional to 22,073.45, 30,463.09 and 12,642.21 is: 17,447.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,073.45 : 30,463.09 = 12,642.21 : x
  2. Step 2: Convert to fraction form
    22,073.45/30,463.09 = 12,642.21/x
  3. Step 3: Cross multiply
    22,073.45x = 30,463.09 × 12,642.21
  4. Step 4: Simplify right side
    22,073.45x = 385,120,749.42
  5. Step 5: Solve for x
    x = 385,120,749.42/22,073.45
  6. Step 6: Final answer
    x = 17,447.24

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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.