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Finding the Fourth Proportional to 19,145.08, 28,718.52 and 5,294.08

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Solution

The fourth proportional to 19,145.08, 28,718.52 and 5,294.08 is: 7,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.08 : 28,718.52 = 5,294.08 : x
  2. Step 2: Convert to fraction form
    19,145.08/28,718.52 = 5,294.08/x
  3. Step 3: Cross multiply
    19,145.08x = 28,718.52 × 5,294.08
  4. Step 4: Simplify right side
    19,145.08x = 152,038,142.36
  5. Step 5: Solve for x
    x = 152,038,142.36/19,145.08
  6. Step 6: Final answer
    x = 7,941.37

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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.