Home / 39,665.89-59,498.38-13,389.09

Finding the Fourth Proportional to 39,665.89, 59,498.38 and 13,389.09

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Solution

The fourth proportional to 39,665.89, 59,498.38 and 13,389.09 is: 20,083.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,665.89 : 59,498.38 = 13,389.09 : x
  2. Step 2: Convert to fraction form
    39,665.89/59,498.38 = 13,389.09/x
  3. Step 3: Cross multiply
    39,665.89x = 59,498.38 × 13,389.09
  4. Step 4: Simplify right side
    39,665.89x = 796,628,867.18
  5. Step 5: Solve for x
    x = 796,628,867.18/39,665.89
  6. Step 6: Final answer
    x = 20,083.47

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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.