Home / 22,678.41-31,285.30-19,529.13

Finding the Fourth Proportional to 22,678.41, 31,285.30 and 19,529.13

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Solution

The fourth proportional to 22,678.41, 31,285.30 and 19,529.13 is: 26,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,678.41 : 31,285.30 = 19,529.13 : x
  2. Step 2: Convert to fraction form
    22,678.41/31,285.30 = 19,529.13/x
  3. Step 3: Cross multiply
    22,678.41x = 31,285.30 × 19,529.13
  4. Step 4: Simplify right side
    22,678.41x = 610,974,690.79
  5. Step 5: Solve for x
    x = 610,974,690.79/22,678.41
  6. Step 6: Final answer
    x = 26,940.81

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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.