Home / 30,735.04-42,413.19-17,122.76

Finding the Fourth Proportional to 30,735.04, 42,413.19 and 17,122.76

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Solution

The fourth proportional to 30,735.04, 42,413.19 and 17,122.76 is: 23,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,735.04 : 42,413.19 = 17,122.76 : x
  2. Step 2: Convert to fraction form
    30,735.04/42,413.19 = 17,122.76/x
  3. Step 3: Cross multiply
    30,735.04x = 42,413.19 × 17,122.76
  4. Step 4: Simplify right side
    30,735.04x = 726,230,575.52
  5. Step 5: Solve for x
    x = 726,230,575.52/30,735.04
  6. Step 6: Final answer
    x = 23,628.75

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Double scale
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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.