Home / 19,271.10-28,885.05-8,175.90

Finding the Fourth Proportional to 19,271.10, 28,885.05 and 8,175.90

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Solution

The fourth proportional to 19,271.10, 28,885.05 and 8,175.90 is: 12,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,271.10 : 28,885.05 = 8,175.90 : x
  2. Step 2: Convert to fraction form
    19,271.10/28,885.05 = 8,175.90/x
  3. Step 3: Cross multiply
    19,271.10x = 28,885.05 × 8,175.90
  4. Step 4: Simplify right side
    19,271.10x = 236,161,280.30
  5. Step 5: Solve for x
    x = 236,161,280.30/19,271.10
  6. Step 6: Final answer
    x = 12,254.69

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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.