Home / 21,436.43-29,583.20-12,004.79

Finding the Fourth Proportional to 21,436.43, 29,583.20 and 12,004.79

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Solution

The fourth proportional to 21,436.43, 29,583.20 and 12,004.79 is: 16,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,436.43 : 29,583.20 = 12,004.79 : x
  2. Step 2: Convert to fraction form
    21,436.43/29,583.20 = 12,004.79/x
  3. Step 3: Cross multiply
    21,436.43x = 29,583.20 × 12,004.79
  4. Step 4: Simplify right side
    21,436.43x = 355,139,985.62
  5. Step 5: Solve for x
    x = 355,139,985.62/21,436.43
  6. Step 6: Final answer
    x = 16,567.13

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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.