Home / 19,020.42-28,537.40-8,489.48

Finding the Fourth Proportional to 19,020.42, 28,537.40 and 8,489.48

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Solution

The fourth proportional to 19,020.42, 28,537.40 and 8,489.48 is: 12,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.42 : 28,537.40 = 8,489.48 : x
  2. Step 2: Convert to fraction form
    19,020.42/28,537.40 = 8,489.48/x
  3. Step 3: Cross multiply
    19,020.42x = 28,537.40 × 8,489.48
  4. Step 4: Simplify right side
    19,020.42x = 242,267,686.55
  5. Step 5: Solve for x
    x = 242,267,686.55/19,020.42
  6. Step 6: Final answer
    x = 12,737.24

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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.