Home / 39,723.48-59,578.74-12,015

Finding the Fourth Proportional to 39,723.48, 59,578.74 and 12,015

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Solution

The fourth proportional to 39,723.48, 59,578.74 and 12,015 is: 18,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,723.48 : 59,578.74 = 12,015 : x
  2. Step 2: Convert to fraction form
    39,723.48/59,578.74 = 12,015/x
  3. Step 3: Cross multiply
    39,723.48x = 59,578.74 × 12,015
  4. Step 4: Simplify right side
    39,723.48x = 715,838,561.10
  5. Step 5: Solve for x
    x = 715,838,561.10/39,723.48
  6. Step 6: Final answer
    x = 18,020.54

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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.