Home / 21,977.67-30,333.89-14,330.50

Finding the Fourth Proportional to 21,977.67, 30,333.89 and 14,330.50

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Solution

The fourth proportional to 21,977.67, 30,333.89 and 14,330.50 is: 19,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977.67 : 30,333.89 = 14,330.50 : x
  2. Step 2: Convert to fraction form
    21,977.67/30,333.89 = 14,330.50/x
  3. Step 3: Cross multiply
    21,977.67x = 30,333.89 × 14,330.50
  4. Step 4: Simplify right side
    21,977.67x = 434,699,770.64
  5. Step 5: Solve for x
    x = 434,699,770.64/21,977.67
  6. Step 6: Final answer
    x = 19,779.15

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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.