Home / 21,450.24-29,601.24-12,018.84

Finding the Fourth Proportional to 21,450.24, 29,601.24 and 12,018.84

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Solution

The fourth proportional to 21,450.24, 29,601.24 and 12,018.84 is: 16,585.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.24 : 29,601.24 = 12,018.84 : x
  2. Step 2: Convert to fraction form
    21,450.24/29,601.24 = 12,018.84/x
  3. Step 3: Cross multiply
    21,450.24x = 29,601.24 × 12,018.84
  4. Step 4: Simplify right side
    21,450.24x = 355,772,567.36
  5. Step 5: Solve for x
    x = 355,772,567.36/21,450.24
  6. Step 6: Final answer
    x = 16,585.95

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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.