Home / 18,136.16-25,039.50-14,787

Finding the Fourth Proportional to 18,136.16, 25,039.50 and 14,787

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Solution

The fourth proportional to 18,136.16, 25,039.50 and 14,787 is: 20,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.16 : 25,039.50 = 14,787 : x
  2. Step 2: Convert to fraction form
    18,136.16/25,039.50 = 14,787/x
  3. Step 3: Cross multiply
    18,136.16x = 25,039.50 × 14,787
  4. Step 4: Simplify right side
    18,136.16x = 370,259,086.50
  5. Step 5: Solve for x
    x = 370,259,086.50/18,136.16
  6. Step 6: Final answer
    x = 20,415.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.