Home / 19,020.52-28,535.46-6,540.72

Finding the Fourth Proportional to 19,020.52, 28,535.46 and 6,540.72

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Solution

The fourth proportional to 19,020.52, 28,535.46 and 6,540.72 is: 9,812.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.52 : 28,535.46 = 6,540.72 : x
  2. Step 2: Convert to fraction form
    19,020.52/28,535.46 = 6,540.72/x
  3. Step 3: Cross multiply
    19,020.52x = 28,535.46 × 6,540.72
  4. Step 4: Simplify right side
    19,020.52x = 186,642,322.40
  5. Step 5: Solve for x
    x = 186,642,322.40/19,020.52
  6. Step 6: Final answer
    x = 9,812.68

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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.