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Finding the Fourth Proportional to 18,285.50, 25,248.25 and 14,029.80

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Solution

The fourth proportional to 18,285.50, 25,248.25 and 14,029.80 is: 19,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.50 : 25,248.25 = 14,029.80 : x
  2. Step 2: Convert to fraction form
    18,285.50/25,248.25 = 14,029.80/x
  3. Step 3: Cross multiply
    18,285.50x = 25,248.25 × 14,029.80
  4. Step 4: Simplify right side
    18,285.50x = 354,227,897.85
  5. Step 5: Solve for x
    x = 354,227,897.85/18,285.50
  6. Step 6: Final answer
    x = 19,372.07

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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.