Home / 39,786.05-59,679.77-13,491.47

Finding the Fourth Proportional to 39,786.05, 59,679.77 and 13,491.47

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Solution

The fourth proportional to 39,786.05, 59,679.77 and 13,491.47 is: 20,237.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786.05 : 59,679.77 = 13,491.47 : x
  2. Step 2: Convert to fraction form
    39,786.05/59,679.77 = 13,491.47/x
  3. Step 3: Cross multiply
    39,786.05x = 59,679.77 × 13,491.47
  4. Step 4: Simplify right side
    39,786.05x = 805,167,908.30
  5. Step 5: Solve for x
    x = 805,167,908.30/39,786.05
  6. Step 6: Final answer
    x = 20,237.44

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1.5x scale

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.