Home / 39,019.53-53,847.09-21,114.54

Finding the Fourth Proportional to 39,019.53, 53,847.09 and 21,114.54

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Solution

The fourth proportional to 39,019.53, 53,847.09 and 21,114.54 is: 29,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,019.53 : 53,847.09 = 21,114.54 : x
  2. Step 2: Convert to fraction form
    39,019.53/53,847.09 = 21,114.54/x
  3. Step 3: Cross multiply
    39,019.53x = 53,847.09 × 21,114.54
  4. Step 4: Simplify right side
    39,019.53x = 1,136,956,266.45
  5. Step 5: Solve for x
    x = 1,136,956,266.45/39,019.53
  6. Step 6: Final answer
    x = 29,138.13

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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.