Home / 19,020.93-28,538.15-8,489.99

Finding the Fourth Proportional to 19,020.93, 28,538.15 and 8,489.99

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Solution

The fourth proportional to 19,020.93, 28,538.15 and 8,489.99 is: 12,737.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.93 : 28,538.15 = 8,489.99 : x
  2. Step 2: Convert to fraction form
    19,020.93/28,538.15 = 8,489.99/x
  3. Step 3: Cross multiply
    19,020.93x = 28,538.15 × 8,489.99
  4. Step 4: Simplify right side
    19,020.93x = 242,288,422.98
  5. Step 5: Solve for x
    x = 242,288,422.98/19,020.93
  6. Step 6: Final answer
    x = 12,737.99

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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.