Home / 39,150.75-54,028.09-21,246.06

Finding the Fourth Proportional to 39,150.75, 54,028.09 and 21,246.06

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Solution

The fourth proportional to 39,150.75, 54,028.09 and 21,246.06 is: 29,319.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,150.75 : 54,028.09 = 21,246.06 : x
  2. Step 2: Convert to fraction form
    39,150.75/54,028.09 = 21,246.06/x
  3. Step 3: Cross multiply
    39,150.75x = 54,028.09 × 21,246.06
  4. Step 4: Simplify right side
    39,150.75x = 1,147,884,041.83
  5. Step 5: Solve for x
    x = 1,147,884,041.83/39,150.75
  6. Step 6: Final answer
    x = 29,319.59

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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.