Home / 21,173.65-29,219.69-11,613.63

Finding the Fourth Proportional to 21,173.65, 29,219.69 and 11,613.63

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Solution

The fourth proportional to 21,173.65, 29,219.69 and 11,613.63 is: 16,026.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.65 : 29,219.69 = 11,613.63 : x
  2. Step 2: Convert to fraction form
    21,173.65/29,219.69 = 11,613.63/x
  3. Step 3: Cross multiply
    21,173.65x = 29,219.69 × 11,613.63
  4. Step 4: Simplify right side
    21,173.65x = 339,346,577.30
  5. Step 5: Solve for x
    x = 339,346,577.30/21,173.65
  6. Step 6: Final answer
    x = 16,026.83

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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.