Home / 39,389.86-54,358.68-22,393.72

Finding the Fourth Proportional to 39,389.86, 54,358.68 and 22,393.72

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Solution

The fourth proportional to 39,389.86, 54,358.68 and 22,393.72 is: 30,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,389.86 : 54,358.68 = 22,393.72 : x
  2. Step 2: Convert to fraction form
    39,389.86/54,358.68 = 22,393.72/x
  3. Step 3: Cross multiply
    39,389.86x = 54,358.68 × 22,393.72
  4. Step 4: Simplify right side
    39,389.86x = 1,217,293,059.49
  5. Step 5: Solve for x
    x = 1,217,293,059.49/39,389.86
  6. Step 6: Final answer
    x = 30,903.72

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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.