Home / 18,948.94-28,407.83-14,259.80

Finding the Fourth Proportional to 18,948.94, 28,407.83 and 14,259.80

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Solution

The fourth proportional to 18,948.94, 28,407.83 and 14,259.80 is: 21,377.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.94 : 28,407.83 = 14,259.80 : x
  2. Step 2: Convert to fraction form
    18,948.94/28,407.83 = 14,259.80/x
  3. Step 3: Cross multiply
    18,948.94x = 28,407.83 × 14,259.80
  4. Step 4: Simplify right side
    18,948.94x = 405,089,973.95
  5. Step 5: Solve for x
    x = 405,089,973.95/18,948.94
  6. Step 6: Final answer
    x = 21,377.98

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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.