Home / 39,541.91-54,568.71-21,636.90

Finding the Fourth Proportional to 39,541.91, 54,568.71 and 21,636.90

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Solution

The fourth proportional to 39,541.91, 54,568.71 and 21,636.90 is: 29,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,541.91 : 54,568.71 = 21,636.90 : x
  2. Step 2: Convert to fraction form
    39,541.91/54,568.71 = 21,636.90/x
  3. Step 3: Cross multiply
    39,541.91x = 54,568.71 × 21,636.90
  4. Step 4: Simplify right side
    39,541.91x = 1,180,697,721.40
  5. Step 5: Solve for x
    x = 1,180,697,721.40/39,541.91
  6. Step 6: Final answer
    x = 29,859.40

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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.