Home / 20,307.16-30,376.50-19,063

Finding the Fourth Proportional to 20,307.16, 30,376.50 and 19,063

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Solution

The fourth proportional to 20,307.16, 30,376.50 and 19,063 is: 28,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.16 : 30,376.50 = 19,063 : x
  2. Step 2: Convert to fraction form
    20,307.16/30,376.50 = 19,063/x
  3. Step 3: Cross multiply
    20,307.16x = 30,376.50 × 19,063
  4. Step 4: Simplify right side
    20,307.16x = 579,067,219.50
  5. Step 5: Solve for x
    x = 579,067,219.50/20,307.16
  6. Step 6: Final answer
    x = 28,515.42

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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.