Home / 19,019.38-28,529.04-7,324.40

Finding the Fourth Proportional to 19,019.38, 28,529.04 and 7,324.40

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Solution

The fourth proportional to 19,019.38, 28,529.04 and 7,324.40 is: 10,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.38 : 28,529.04 = 7,324.40 : x
  2. Step 2: Convert to fraction form
    19,019.38/28,529.04 = 7,324.40/x
  3. Step 3: Cross multiply
    19,019.38x = 28,529.04 × 7,324.40
  4. Step 4: Simplify right side
    19,019.38x = 208,957,985.40
  5. Step 5: Solve for x
    x = 208,957,985.40/19,019.38
  6. Step 6: Final answer
    x = 10,986.58

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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.