Home / 19,271.90-28,905.42-8,176.52

Finding the Fourth Proportional to 19,271.90, 28,905.42 and 8,176.52

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Solution

The fourth proportional to 19,271.90, 28,905.42 and 8,176.52 is: 12,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,271.90 : 28,905.42 = 8,176.52 : x
  2. Step 2: Convert to fraction form
    19,271.90/28,905.42 = 8,176.52/x
  3. Step 3: Cross multiply
    19,271.90x = 28,905.42 × 8,176.52
  4. Step 4: Simplify right side
    19,271.90x = 236,345,744.74
  5. Step 5: Solve for x
    x = 236,345,744.74/19,271.90
  6. Step 6: Final answer
    x = 12,263.75

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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.