Home / 22,371.02-30,871.21-13,413.23

Finding the Fourth Proportional to 22,371.02, 30,871.21 and 13,413.23

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Solution

The fourth proportional to 22,371.02, 30,871.21 and 13,413.23 is: 18,509.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,371.02 : 30,871.21 = 13,413.23 : x
  2. Step 2: Convert to fraction form
    22,371.02/30,871.21 = 13,413.23/x
  3. Step 3: Cross multiply
    22,371.02x = 30,871.21 × 13,413.23
  4. Step 4: Simplify right side
    22,371.02x = 414,082,640.11
  5. Step 5: Solve for x
    x = 414,082,640.11/22,371.02
  6. Step 6: Final answer
    x = 18,509.78

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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.