Home / 20,271.90-30,473.23-18,797.95

Finding the Fourth Proportional to 20,271.90, 30,473.23 and 18,797.95

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Solution

The fourth proportional to 20,271.90, 30,473.23 and 18,797.95 is: 28,257.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.90 : 30,473.23 = 18,797.95 : x
  2. Step 2: Convert to fraction form
    20,271.90/30,473.23 = 18,797.95/x
  3. Step 3: Cross multiply
    20,271.90x = 30,473.23 × 18,797.95
  4. Step 4: Simplify right side
    20,271.90x = 572,834,253.88
  5. Step 5: Solve for x
    x = 572,834,253.88/20,271.90
  6. Step 6: Final answer
    x = 28,257.55

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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.