Home / 22,219.82-30,671.08-12,792.14

Finding the Fourth Proportional to 22,219.82, 30,671.08 and 12,792.14

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Solution

The fourth proportional to 22,219.82, 30,671.08 and 12,792.14 is: 17,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,219.82 : 30,671.08 = 12,792.14 : x
  2. Step 2: Convert to fraction form
    22,219.82/30,671.08 = 12,792.14/x
  3. Step 3: Cross multiply
    22,219.82x = 30,671.08 × 12,792.14
  4. Step 4: Simplify right side
    22,219.82x = 392,348,749.31
  5. Step 5: Solve for x
    x = 392,348,749.31/22,219.82
  6. Step 6: Final answer
    x = 17,657.60

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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.