Home / 39,100.62-53,958.63-21,195.18

Finding the Fourth Proportional to 39,100.62, 53,958.63 and 21,195.18

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Solution

The fourth proportional to 39,100.62, 53,958.63 and 21,195.18 is: 29,249.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,100.62 : 53,958.63 = 21,195.18 : x
  2. Step 2: Convert to fraction form
    39,100.62/53,958.63 = 21,195.18/x
  3. Step 3: Cross multiply
    39,100.62x = 53,958.63 × 21,195.18
  4. Step 4: Simplify right side
    39,100.62x = 1,143,662,875.40
  5. Step 5: Solve for x
    x = 1,143,662,875.40/39,100.62
  6. Step 6: Final answer
    x = 29,249.23

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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.