Home / 39,855.61-59,792.64-13,560.36

Finding the Fourth Proportional to 39,855.61, 59,792.64 and 13,560.36

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Solution

The fourth proportional to 39,855.61, 59,792.64 and 13,560.36 is: 20,343.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,855.61 : 59,792.64 = 13,560.36 : x
  2. Step 2: Convert to fraction form
    39,855.61/59,792.64 = 13,560.36/x
  3. Step 3: Cross multiply
    39,855.61x = 59,792.64 × 13,560.36
  4. Step 4: Simplify right side
    39,855.61x = 810,809,723.75
  5. Step 5: Solve for x
    x = 810,809,723.75/39,855.61
  6. Step 6: Final answer
    x = 20,343.68

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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.