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Finding the Fourth Proportional to 19,031, 28,548.30 and 6,550.52

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Solution

The fourth proportional to 19,031, 28,548.30 and 6,550.52 is: 9,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031 : 28,548.30 = 6,550.52 : x
  2. Step 2: Convert to fraction form
    19,031/28,548.30 = 6,550.52/x
  3. Step 3: Cross multiply
    19,031x = 28,548.30 × 6,550.52
  4. Step 4: Simplify right side
    19,031x = 187,006,210.12
  5. Step 5: Solve for x
    x = 187,006,210.12/19,031
  6. Step 6: Final answer
    x = 9,826.40

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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.