Home / 35,613.14-53,419.64-13,431.49

Finding the Fourth Proportional to 35,613.14, 53,419.64 and 13,431.49

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Solution

The fourth proportional to 35,613.14, 53,419.64 and 13,431.49 is: 20,147.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,613.14 : 53,419.64 = 13,431.49 : x
  2. Step 2: Convert to fraction form
    35,613.14/53,419.64 = 13,431.49/x
  3. Step 3: Cross multiply
    35,613.14x = 53,419.64 × 13,431.49
  4. Step 4: Simplify right side
    35,613.14x = 717,505,360.46
  5. Step 5: Solve for x
    x = 717,505,360.46/35,613.14
  6. Step 6: Final answer
    x = 20,147.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.