Home / 19,019.19-28,528.76-7,324.21

Finding the Fourth Proportional to 19,019.19, 28,528.76 and 7,324.21

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Solution

The fourth proportional to 19,019.19, 28,528.76 and 7,324.21 is: 10,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.19 : 28,528.76 = 7,324.21 : x
  2. Step 2: Convert to fraction form
    19,019.19/28,528.76 = 7,324.21/x
  3. Step 3: Cross multiply
    19,019.19x = 28,528.76 × 7,324.21
  4. Step 4: Simplify right side
    19,019.19x = 208,950,576.27
  5. Step 5: Solve for x
    x = 208,950,576.27/19,019.19
  6. Step 6: Final answer
    x = 10,986.30

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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.