Home / 21,064.20-29,072.42-12,566.92

Finding the Fourth Proportional to 21,064.20, 29,072.42 and 12,566.92

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Solution

The fourth proportional to 21,064.20, 29,072.42 and 12,566.92 is: 17,344.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064.20 : 29,072.42 = 12,566.92 : x
  2. Step 2: Convert to fraction form
    21,064.20/29,072.42 = 12,566.92/x
  3. Step 3: Cross multiply
    21,064.20x = 29,072.42 × 12,566.92
  4. Step 4: Simplify right side
    21,064.20x = 365,350,776.35
  5. Step 5: Solve for x
    x = 365,350,776.35/21,064.20
  6. Step 6: Final answer
    x = 17,344.63

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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.