Home / 30,715.08-42,413.13-19,404.24

Finding the Fourth Proportional to 30,715.08, 42,413.13 and 19,404.24

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Solution

The fourth proportional to 30,715.08, 42,413.13 and 19,404.24 is: 26,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,715.08 : 42,413.13 = 19,404.24 : x
  2. Step 2: Convert to fraction form
    30,715.08/42,413.13 = 19,404.24/x
  3. Step 3: Cross multiply
    30,715.08x = 42,413.13 × 19,404.24
  4. Step 4: Simplify right side
    30,715.08x = 822,994,553.67
  5. Step 5: Solve for x
    x = 822,994,553.67/30,715.08
  6. Step 6: Final answer
    x = 26,794.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.