Home / 21,350.04-29,464.42-11,918.60

Finding the Fourth Proportional to 21,350.04, 29,464.42 and 11,918.60

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Solution

The fourth proportional to 21,350.04, 29,464.42 and 11,918.60 is: 16,448.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.04 : 29,464.42 = 11,918.60 : x
  2. Step 2: Convert to fraction form
    21,350.04/29,464.42 = 11,918.60/x
  3. Step 3: Cross multiply
    21,350.04x = 29,464.42 × 11,918.60
  4. Step 4: Simplify right side
    21,350.04x = 351,174,636.21
  5. Step 5: Solve for x
    x = 351,174,636.21/21,350.04
  6. Step 6: Final answer
    x = 16,448.43

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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.