Home / 21,242.92-29,271.98-16,433.64

Finding the Fourth Proportional to 21,242.92, 29,271.98 and 16,433.64

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Solution

The fourth proportional to 21,242.92, 29,271.98 and 16,433.64 is: 22,644.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,242.92 : 29,271.98 = 16,433.64 : x
  2. Step 2: Convert to fraction form
    21,242.92/29,271.98 = 16,433.64/x
  3. Step 3: Cross multiply
    21,242.92x = 29,271.98 × 16,433.64
  4. Step 4: Simplify right side
    21,242.92x = 481,045,099.24
  5. Step 5: Solve for x
    x = 481,045,099.24/21,242.92
  6. Step 6: Final answer
    x = 22,644.97

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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.