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Finding the Fourth Proportional to 30,041.88, 41,413.80 and 21,062.28

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Solution

The fourth proportional to 30,041.88, 41,413.80 and 21,062.28 is: 29,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.88 : 41,413.80 = 21,062.28 : x
  2. Step 2: Convert to fraction form
    30,041.88/41,413.80 = 21,062.28/x
  3. Step 3: Cross multiply
    30,041.88x = 41,413.80 × 21,062.28
  4. Step 4: Simplify right side
    30,041.88x = 872,269,051.46
  5. Step 5: Solve for x
    x = 872,269,051.46/30,041.88
  6. Step 6: Final answer
    x = 29,035.10

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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.