Home / 39,709.91-54,800.46-21,804.76

Finding the Fourth Proportional to 39,709.91, 54,800.46 and 21,804.76

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Solution

The fourth proportional to 39,709.91, 54,800.46 and 21,804.76 is: 30,091.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,709.91 : 54,800.46 = 21,804.76 : x
  2. Step 2: Convert to fraction form
    39,709.91/54,800.46 = 21,804.76/x
  3. Step 3: Cross multiply
    39,709.91x = 54,800.46 × 21,804.76
  4. Step 4: Simplify right side
    39,709.91x = 1,194,910,878.19
  5. Step 5: Solve for x
    x = 1,194,910,878.19/39,709.91
  6. Step 6: Final answer
    x = 30,091.00

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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.