Home / 39,499.68-54,509.40-21,594.72

Finding the Fourth Proportional to 39,499.68, 54,509.40 and 21,594.72

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Solution

The fourth proportional to 39,499.68, 54,509.40 and 21,594.72 is: 29,800.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,499.68 : 54,509.40 = 21,594.72 : x
  2. Step 2: Convert to fraction form
    39,499.68/54,509.40 = 21,594.72/x
  3. Step 3: Cross multiply
    39,499.68x = 54,509.40 × 21,594.72
  4. Step 4: Simplify right side
    39,499.68x = 1,177,115,230.37
  5. Step 5: Solve for x
    x = 1,177,115,230.37/39,499.68
  6. Step 6: Final answer
    x = 29,800.63

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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.