Home / 22,622.15-31,219.11-12,551.01

Finding the Fourth Proportional to 22,622.15, 31,219.11 and 12,551.01

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Solution

The fourth proportional to 22,622.15, 31,219.11 and 12,551.01 is: 17,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,622.15 : 31,219.11 = 12,551.01 : x
  2. Step 2: Convert to fraction form
    22,622.15/31,219.11 = 12,551.01/x
  3. Step 3: Cross multiply
    22,622.15x = 31,219.11 × 12,551.01
  4. Step 4: Simplify right side
    22,622.15x = 391,831,361.80
  5. Step 5: Solve for x
    x = 391,831,361.80/22,622.15
  6. Step 6: Final answer
    x = 17,320.70

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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.