Home / 39,263.87-54,183.57-21,359.00

Finding the Fourth Proportional to 39,263.87, 54,183.57 and 21,359.00

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Solution

The fourth proportional to 39,263.87, 54,183.57 and 21,359.00 is: 29,475.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,263.87 : 54,183.57 = 21,359.00 : x
  2. Step 2: Convert to fraction form
    39,263.87/54,183.57 = 21,359.00/x
  3. Step 3: Cross multiply
    39,263.87x = 54,183.57 × 21,359.00
  4. Step 4: Simplify right side
    39,263.87x = 1,157,306,600.71
  5. Step 5: Solve for x
    x = 1,157,306,600.71/39,263.87
  6. Step 6: Final answer
    x = 29,475.11

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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.