Home / 18,951.90-28,429.29-14,515.98

Finding the Fourth Proportional to 18,951.90, 28,429.29 and 14,515.98

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Solution

The fourth proportional to 18,951.90, 28,429.29 and 14,515.98 is: 21,775.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.90 : 28,429.29 = 14,515.98 : x
  2. Step 2: Convert to fraction form
    18,951.90/28,429.29 = 14,515.98/x
  3. Step 3: Cross multiply
    18,951.90x = 28,429.29 × 14,515.98
  4. Step 4: Simplify right side
    18,951.90x = 412,679,005.05
  5. Step 5: Solve for x
    x = 412,679,005.05/18,951.90
  6. Step 6: Final answer
    x = 21,775.07

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1.5x scale

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.