Home / 19,266.45-28,881.23-8,157.86

Finding the Fourth Proportional to 19,266.45, 28,881.23 and 8,157.86

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Solution

The fourth proportional to 19,266.45, 28,881.23 and 8,157.86 is: 12,228.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.45 : 28,881.23 = 8,157.86 : x
  2. Step 2: Convert to fraction form
    19,266.45/28,881.23 = 8,157.86/x
  3. Step 3: Cross multiply
    19,266.45x = 28,881.23 × 8,157.86
  4. Step 4: Simplify right side
    19,266.45x = 235,609,062.38
  5. Step 5: Solve for x
    x = 235,609,062.38/19,266.45
  6. Step 6: Final answer
    x = 12,228.98

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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.