Home / 39,155.18-54,033.38-22,159.11

Finding the Fourth Proportional to 39,155.18, 54,033.38 and 22,159.11

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Solution

The fourth proportional to 39,155.18, 54,033.38 and 22,159.11 is: 30,579.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.18 : 54,033.38 = 22,159.11 : x
  2. Step 2: Convert to fraction form
    39,155.18/54,033.38 = 22,159.11/x
  3. Step 3: Cross multiply
    39,155.18x = 54,033.38 × 22,159.11
  4. Step 4: Simplify right side
    39,155.18x = 1,197,331,500.30
  5. Step 5: Solve for x
    x = 1,197,331,500.30/39,155.18
  6. Step 6: Final answer
    x = 30,579.14

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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.