Home / 39,389.60-54,359.07-22,396.70

Finding the Fourth Proportional to 39,389.60, 54,359.07 and 22,396.70

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Solution

The fourth proportional to 39,389.60, 54,359.07 and 22,396.70 is: 30,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,389.60 : 54,359.07 = 22,396.70 : x
  2. Step 2: Convert to fraction form
    39,389.60/54,359.07 = 22,396.70/x
  3. Step 3: Cross multiply
    39,389.60x = 54,359.07 × 22,396.70
  4. Step 4: Simplify right side
    39,389.60x = 1,217,463,783.07
  5. Step 5: Solve for x
    x = 1,217,463,783.07/39,389.60
  6. Step 6: Final answer
    x = 30,908.25

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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.