Home / 20,695.86-28,548.18-15,024

Finding the Fourth Proportional to 20,695.86, 28,548.18 and 15,024

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Solution

The fourth proportional to 20,695.86, 28,548.18 and 15,024 is: 20,724.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.86 : 28,548.18 = 15,024 : x
  2. Step 2: Convert to fraction form
    20,695.86/28,548.18 = 15,024/x
  3. Step 3: Cross multiply
    20,695.86x = 28,548.18 × 15,024
  4. Step 4: Simplify right side
    20,695.86x = 428,907,856.32
  5. Step 5: Solve for x
    x = 428,907,856.32/20,695.86
  6. Step 6: Final answer
    x = 20,724.33

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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.