Home / 39,147.44-54,023.04-21,242.84

Finding the Fourth Proportional to 39,147.44, 54,023.04 and 21,242.84

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Solution

The fourth proportional to 39,147.44, 54,023.04 and 21,242.84 is: 29,314.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,147.44 : 54,023.04 = 21,242.84 : x
  2. Step 2: Convert to fraction form
    39,147.44/54,023.04 = 21,242.84/x
  3. Step 3: Cross multiply
    39,147.44x = 54,023.04 × 21,242.84
  4. Step 4: Simplify right side
    39,147.44x = 1,147,602,795.03
  5. Step 5: Solve for x
    x = 1,147,602,795.03/39,147.44
  6. Step 6: Final answer
    x = 29,314.89

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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.