Home / 28,698.48-43,047.72-13,904.88

Finding the Fourth Proportional to 28,698.48, 43,047.72 and 13,904.88

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Solution

The fourth proportional to 28,698.48, 43,047.72 and 13,904.88 is: 20,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,698.48 : 43,047.72 = 13,904.88 : x
  2. Step 2: Convert to fraction form
    28,698.48/43,047.72 = 13,904.88/x
  3. Step 3: Cross multiply
    28,698.48x = 43,047.72 × 13,904.88
  4. Step 4: Simplify right side
    28,698.48x = 598,573,380.87
  5. Step 5: Solve for x
    x = 598,573,380.87/28,698.48
  6. Step 6: Final answer
    x = 20,857.32

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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.