Home / 20,741.68-28,623.36-11,310.16

Finding the Fourth Proportional to 20,741.68, 28,623.36 and 11,310.16

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Solution

The fourth proportional to 20,741.68, 28,623.36 and 11,310.16 is: 15,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.68 : 28,623.36 = 11,310.16 : x
  2. Step 2: Convert to fraction form
    20,741.68/28,623.36 = 11,310.16/x
  3. Step 3: Cross multiply
    20,741.68x = 28,623.36 × 11,310.16
  4. Step 4: Simplify right side
    20,741.68x = 323,734,781.34
  5. Step 5: Solve for x
    x = 323,734,781.34/20,741.68
  6. Step 6: Final answer
    x = 15,607.93

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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.