Home / 21,631.50-29,824.42-18,051.62

Finding the Fourth Proportional to 21,631.50, 29,824.42 and 18,051.62

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Solution

The fourth proportional to 21,631.50, 29,824.42 and 18,051.62 is: 24,888.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.50 : 29,824.42 = 18,051.62 : x
  2. Step 2: Convert to fraction form
    21,631.50/29,824.42 = 18,051.62/x
  3. Step 3: Cross multiply
    21,631.50x = 29,824.42 × 18,051.62
  4. Step 4: Simplify right side
    21,631.50x = 538,379,096.56
  5. Step 5: Solve for x
    x = 538,379,096.56/21,631.50
  6. Step 6: Final answer
    x = 24,888.66

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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.