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Finding the Fourth Proportional to 70,004.21, 105,006.10 and 17,413.69

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Solution

The fourth proportional to 70,004.21, 105,006.10 and 17,413.69 is: 26,120.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,004.21 : 105,006.10 = 17,413.69 : x
  2. Step 2: Convert to fraction form
    70,004.21/105,006.10 = 17,413.69/x
  3. Step 3: Cross multiply
    70,004.21x = 105,006.10 × 17,413.69
  4. Step 4: Simplify right side
    70,004.21x = 1,828,543,673.51
  5. Step 5: Solve for x
    x = 1,828,543,673.51/70,004.21
  6. Step 6: Final answer
    x = 26,120.48

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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.