Home / 22,622.70-31,220.80-13,062.99

Finding the Fourth Proportional to 22,622.70, 31,220.80 and 13,062.99

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Solution

The fourth proportional to 22,622.70, 31,220.80 and 13,062.99 is: 18,027.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,622.70 : 31,220.80 = 13,062.99 : x
  2. Step 2: Convert to fraction form
    22,622.70/31,220.80 = 13,062.99/x
  3. Step 3: Cross multiply
    22,622.70x = 31,220.80 × 13,062.99
  4. Step 4: Simplify right side
    22,622.70x = 407,836,848.46
  5. Step 5: Solve for x
    x = 407,836,848.46/22,622.70
  6. Step 6: Final answer
    x = 18,027.77

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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.