Home / 21,562.65-29,756.43-12,131.24

Finding the Fourth Proportional to 21,562.65, 29,756.43 and 12,131.24

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Solution

The fourth proportional to 21,562.65, 29,756.43 and 12,131.24 is: 16,741.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.65 : 29,756.43 = 12,131.24 : x
  2. Step 2: Convert to fraction form
    21,562.65/29,756.43 = 12,131.24/x
  3. Step 3: Cross multiply
    21,562.65x = 29,756.43 × 12,131.24
  4. Step 4: Simplify right side
    21,562.65x = 360,982,245.09
  5. Step 5: Solve for x
    x = 360,982,245.09/21,562.65
  6. Step 6: Final answer
    x = 16,741.09

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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.