Home / 21,413.28-32,061.96-15,147.48

Finding the Fourth Proportional to 21,413.28, 32,061.96 and 15,147.48

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Solution

The fourth proportional to 21,413.28, 32,061.96 and 15,147.48 is: 22,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,413.28 : 32,061.96 = 15,147.48 : x
  2. Step 2: Convert to fraction form
    21,413.28/32,061.96 = 15,147.48/x
  3. Step 3: Cross multiply
    21,413.28x = 32,061.96 × 15,147.48
  4. Step 4: Simplify right side
    21,413.28x = 485,657,897.86
  5. Step 5: Solve for x
    x = 485,657,897.86/21,413.28
  6. Step 6: Final answer
    x = 22,680.22

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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.