Home / 19,720.34-27,167.82-13,741.16

Finding the Fourth Proportional to 19,720.34, 27,167.82 and 13,741.16

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Solution

The fourth proportional to 19,720.34, 27,167.82 and 13,741.16 is: 18,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.34 : 27,167.82 = 13,741.16 : x
  2. Step 2: Convert to fraction form
    19,720.34/27,167.82 = 13,741.16/x
  3. Step 3: Cross multiply
    19,720.34x = 27,167.82 × 13,741.16
  4. Step 4: Simplify right side
    19,720.34x = 373,317,361.47
  5. Step 5: Solve for x
    x = 373,317,361.47/19,720.34
  6. Step 6: Final answer
    x = 18,930.57

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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.