Home / 21,193.72-29,245.98-11,762.28

Finding the Fourth Proportional to 21,193.72, 29,245.98 and 11,762.28

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Solution

The fourth proportional to 21,193.72, 29,245.98 and 11,762.28 is: 16,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.72 : 29,245.98 = 11,762.28 : x
  2. Step 2: Convert to fraction form
    21,193.72/29,245.98 = 11,762.28/x
  3. Step 3: Cross multiply
    21,193.72x = 29,245.98 × 11,762.28
  4. Step 4: Simplify right side
    21,193.72x = 343,999,405.63
  5. Step 5: Solve for x
    x = 343,999,405.63/21,193.72
  6. Step 6: Final answer
    x = 16,231.20

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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.