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Finding the Fourth Proportional to 34,369.08, 51,619.20 and 21,247.08

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Solution

The fourth proportional to 34,369.08, 51,619.20 and 21,247.08 is: 31,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,369.08 : 51,619.20 = 21,247.08 : x
  2. Step 2: Convert to fraction form
    34,369.08/51,619.20 = 21,247.08/x
  3. Step 3: Cross multiply
    34,369.08x = 51,619.20 × 21,247.08
  4. Step 4: Simplify right side
    34,369.08x = 1,096,757,271.94
  5. Step 5: Solve for x
    x = 1,096,757,271.94/34,369.08
  6. Step 6: Final answer
    x = 31,911.16

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1.5x scale

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.