Home / 19,157.21-28,698.45-10,811.98

Finding the Fourth Proportional to 19,157.21, 28,698.45 and 10,811.98

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Solution

The fourth proportional to 19,157.21, 28,698.45 and 10,811.98 is: 16,196.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.21 : 28,698.45 = 10,811.98 : x
  2. Step 2: Convert to fraction form
    19,157.21/28,698.45 = 10,811.98/x
  3. Step 3: Cross multiply
    19,157.21x = 28,698.45 × 10,811.98
  4. Step 4: Simplify right side
    19,157.21x = 310,287,123.58
  5. Step 5: Solve for x
    x = 310,287,123.58/19,157.21
  6. Step 6: Final answer
    x = 16,196.89

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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.