Home / 39,709.64-59,571.75-13,057.12

Finding the Fourth Proportional to 39,709.64, 59,571.75 and 13,057.12

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Solution

The fourth proportional to 39,709.64, 59,571.75 and 13,057.12 is: 19,588.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,709.64 : 59,571.75 = 13,057.12 : x
  2. Step 2: Convert to fraction form
    39,709.64/59,571.75 = 13,057.12/x
  3. Step 3: Cross multiply
    39,709.64x = 59,571.75 × 13,057.12
  4. Step 4: Simplify right side
    39,709.64x = 777,835,276.70
  5. Step 5: Solve for x
    x = 777,835,276.70/39,709.64
  6. Step 6: Final answer
    x = 19,588.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.