Home / 21,617.28-32,413.44-8,291.52

Finding the Fourth Proportional to 21,617.28, 32,413.44 and 8,291.52

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Solution

The fourth proportional to 21,617.28, 32,413.44 and 8,291.52 is: 12,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.28 : 32,413.44 = 8,291.52 : x
  2. Step 2: Convert to fraction form
    21,617.28/32,413.44 = 8,291.52/x
  3. Step 3: Cross multiply
    21,617.28x = 32,413.44 × 8,291.52
  4. Step 4: Simplify right side
    21,617.28x = 268,756,686.03
  5. Step 5: Solve for x
    x = 268,756,686.03/21,617.28
  6. Step 6: Final answer
    x = 12,432.49

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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.