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Finding the Fourth Proportional to 19,041.08, 28,560.54 and 5,189

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Solution

The fourth proportional to 19,041.08, 28,560.54 and 5,189 is: 7,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,041.08 : 28,560.54 = 5,189 : x
  2. Step 2: Convert to fraction form
    19,041.08/28,560.54 = 5,189/x
  3. Step 3: Cross multiply
    19,041.08x = 28,560.54 × 5,189
  4. Step 4: Simplify right side
    19,041.08x = 148,200,642.06
  5. Step 5: Solve for x
    x = 148,200,642.06/19,041.08
  6. Step 6: Final answer
    x = 7,783.21

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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.