Home / 19,013.32-28,500.54-7,321.96

Finding the Fourth Proportional to 19,013.32, 28,500.54 and 7,321.96

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Solution

The fourth proportional to 19,013.32, 28,500.54 and 7,321.96 is: 10,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,013.32 : 28,500.54 = 7,321.96 : x
  2. Step 2: Convert to fraction form
    19,013.32/28,500.54 = 7,321.96/x
  3. Step 3: Cross multiply
    19,013.32x = 28,500.54 × 7,321.96
  4. Step 4: Simplify right side
    19,013.32x = 208,679,813.86
  5. Step 5: Solve for x
    x = 208,679,813.86/19,013.32
  6. Step 6: Final answer
    x = 10,975.45

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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.