Home / 20,509.11-30,741.69-14,647.95

Finding the Fourth Proportional to 20,509.11, 30,741.69 and 14,647.95

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Solution

The fourth proportional to 20,509.11, 30,741.69 and 14,647.95 is: 21,956.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509.11 : 30,741.69 = 14,647.95 : x
  2. Step 2: Convert to fraction form
    20,509.11/30,741.69 = 14,647.95/x
  3. Step 3: Cross multiply
    20,509.11x = 30,741.69 × 14,647.95
  4. Step 4: Simplify right side
    20,509.11x = 450,302,738.04
  5. Step 5: Solve for x
    x = 450,302,738.04/20,509.11
  6. Step 6: Final answer
    x = 21,956.23

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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.