Home / 22,372.52-30,874.16-12,812.56

Finding the Fourth Proportional to 22,372.52, 30,874.16 and 12,812.56

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Solution

The fourth proportional to 22,372.52, 30,874.16 and 12,812.56 is: 17,681.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,372.52 : 30,874.16 = 12,812.56 : x
  2. Step 2: Convert to fraction form
    22,372.52/30,874.16 = 12,812.56/x
  3. Step 3: Cross multiply
    22,372.52x = 30,874.16 × 12,812.56
  4. Step 4: Simplify right side
    22,372.52x = 395,577,027.45
  5. Step 5: Solve for x
    x = 395,577,027.45/22,372.52
  6. Step 6: Final answer
    x = 17,681.38

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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.