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Finding the Fourth Proportional to 15,452.01, 21,413.54 and 15,156.63

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Solution

The fourth proportional to 15,452.01, 21,413.54 and 15,156.63 is: 21,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.01 : 21,413.54 = 15,156.63 : x
  2. Step 2: Convert to fraction form
    15,452.01/21,413.54 = 15,156.63/x
  3. Step 3: Cross multiply
    15,452.01x = 21,413.54 × 15,156.63
  4. Step 4: Simplify right side
    15,452.01x = 324,557,140.66
  5. Step 5: Solve for x
    x = 324,557,140.66/15,452.01
  6. Step 6: Final answer
    x = 21,004.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.