Home / 39,098.75-53,956.37-21,193.68

Finding the Fourth Proportional to 39,098.75, 53,956.37 and 21,193.68

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Solution

The fourth proportional to 39,098.75, 53,956.37 and 21,193.68 is: 29,247.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,098.75 : 53,956.37 = 21,193.68 : x
  2. Step 2: Convert to fraction form
    39,098.75/53,956.37 = 21,193.68/x
  3. Step 3: Cross multiply
    39,098.75x = 53,956.37 × 21,193.68
  4. Step 4: Simplify right side
    39,098.75x = 1,143,533,769.96
  5. Step 5: Solve for x
    x = 1,143,533,769.96/39,098.75
  6. Step 6: Final answer
    x = 29,247.32

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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.