Home / 21,562.56-29,756.04-12,131.16

Finding the Fourth Proportional to 21,562.56, 29,756.04 and 12,131.16

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Solution

The fourth proportional to 21,562.56, 29,756.04 and 12,131.16 is: 16,740.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.56 : 29,756.04 = 12,131.16 : x
  2. Step 2: Convert to fraction form
    21,562.56/29,756.04 = 12,131.16/x
  3. Step 3: Cross multiply
    21,562.56x = 29,756.04 × 12,131.16
  4. Step 4: Simplify right side
    21,562.56x = 360,975,282.21
  5. Step 5: Solve for x
    x = 360,975,282.21/21,562.56
  6. Step 6: Final answer
    x = 16,740.84

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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.