Home / 39,119.44-53,984.31-21,214.35

Finding the Fourth Proportional to 39,119.44, 53,984.31 and 21,214.35

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Solution

The fourth proportional to 39,119.44, 53,984.31 and 21,214.35 is: 29,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,119.44 : 53,984.31 = 21,214.35 : x
  2. Step 2: Convert to fraction form
    39,119.44/53,984.31 = 21,214.35/x
  3. Step 3: Cross multiply
    39,119.44x = 53,984.31 × 21,214.35
  4. Step 4: Simplify right side
    39,119.44x = 1,145,242,046.85
  5. Step 5: Solve for x
    x = 1,145,242,046.85/39,119.44
  6. Step 6: Final answer
    x = 29,275.52

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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.