Home / 38,719.56-53,433-21,952.56

Finding the Fourth Proportional to 38,719.56, 53,433 and 21,952.56

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Solution

The fourth proportional to 38,719.56, 53,433 and 21,952.56 is: 30,294.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,719.56 : 53,433 = 21,952.56 : x
  2. Step 2: Convert to fraction form
    38,719.56/53,433 = 21,952.56/x
  3. Step 3: Cross multiply
    38,719.56x = 53,433 × 21,952.56
  4. Step 4: Simplify right side
    38,719.56x = 1,172,991,138.48
  5. Step 5: Solve for x
    x = 1,172,991,138.48/38,719.56
  6. Step 6: Final answer
    x = 30,294.54

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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.