Home / 22,870.20-31,562.34-12,799.80

Finding the Fourth Proportional to 22,870.20, 31,562.34 and 12,799.80

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Solution

The fourth proportional to 22,870.20, 31,562.34 and 12,799.80 is: 17,664.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,870.20 : 31,562.34 = 12,799.80 : x
  2. Step 2: Convert to fraction form
    22,870.20/31,562.34 = 12,799.80/x
  3. Step 3: Cross multiply
    22,870.20x = 31,562.34 × 12,799.80
  4. Step 4: Simplify right side
    22,870.20x = 403,991,639.53
  5. Step 5: Solve for x
    x = 403,991,639.53/22,870.20
  6. Step 6: Final answer
    x = 17,664.54

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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.