Home / 39,019.85-53,846.97-21,114.45

Finding the Fourth Proportional to 39,019.85, 53,846.97 and 21,114.45

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Solution

The fourth proportional to 39,019.85, 53,846.97 and 21,114.45 is: 29,137.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,019.85 : 53,846.97 = 21,114.45 : x
  2. Step 2: Convert to fraction form
    39,019.85/53,846.97 = 21,114.45/x
  3. Step 3: Cross multiply
    39,019.85x = 53,846.97 × 21,114.45
  4. Step 4: Simplify right side
    39,019.85x = 1,136,949,155.72
  5. Step 5: Solve for x
    x = 1,136,949,155.72/39,019.85
  6. Step 6: Final answer
    x = 29,137.72

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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.