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Finding the Fourth Proportional to 14,497.89, 20,004.35 and 13,759.71

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Solution

The fourth proportional to 14,497.89, 20,004.35 and 13,759.71 is: 18,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,497.89 : 20,004.35 = 13,759.71 : x
  2. Step 2: Convert to fraction form
    14,497.89/20,004.35 = 13,759.71/x
  3. Step 3: Cross multiply
    14,497.89x = 20,004.35 × 13,759.71
  4. Step 4: Simplify right side
    14,497.89x = 275,253,985.94
  5. Step 5: Solve for x
    x = 275,253,985.94/14,497.89
  6. Step 6: Final answer
    x = 18,985.80

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1.5x scale

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.