Home / 21,347.04-29,460.58-11,917.02

Finding the Fourth Proportional to 21,347.04, 29,460.58 and 11,917.02

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Solution

The fourth proportional to 21,347.04, 29,460.58 and 11,917.02 is: 16,446.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.04 : 29,460.58 = 11,917.02 : x
  2. Step 2: Convert to fraction form
    21,347.04/29,460.58 = 11,917.02/x
  3. Step 3: Cross multiply
    21,347.04x = 29,460.58 × 11,917.02
  4. Step 4: Simplify right side
    21,347.04x = 351,082,321.07
  5. Step 5: Solve for x
    x = 351,082,321.07/21,347.04
  6. Step 6: Final answer
    x = 16,446.42

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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.