Home / 19,000.08-28,428.84-18,000

Finding the Fourth Proportional to 19,000.08, 28,428.84 and 18,000

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Solution

The fourth proportional to 19,000.08, 28,428.84 and 18,000 is: 26,932.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.08 : 28,428.84 = 18,000 : x
  2. Step 2: Convert to fraction form
    19,000.08/28,428.84 = 18,000/x
  3. Step 3: Cross multiply
    19,000.08x = 28,428.84 × 18,000
  4. Step 4: Simplify right side
    19,000.08x = 511,719,120
  5. Step 5: Solve for x
    x = 511,719,120/19,000.08
  6. Step 6: Final answer
    x = 26,932.47

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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.