Home / 20,798.56-28,704-11,848.24

Finding the Fourth Proportional to 20,798.56, 28,704 and 11,848.24

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Solution

The fourth proportional to 20,798.56, 28,704 and 11,848.24 is: 16,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798.56 : 28,704 = 11,848.24 : x
  2. Step 2: Convert to fraction form
    20,798.56/28,704 = 11,848.24/x
  3. Step 3: Cross multiply
    20,798.56x = 28,704 × 11,848.24
  4. Step 4: Simplify right side
    20,798.56x = 340,091,880.96
  5. Step 5: Solve for x
    x = 340,091,880.96/20,798.56
  6. Step 6: Final answer
    x = 16,351.70

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1.5x scale

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.