Home / 18,757.28-28,051.26-14,316.32

Finding the Fourth Proportional to 18,757.28, 28,051.26 and 14,316.32

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Solution

The fourth proportional to 18,757.28, 28,051.26 and 14,316.32 is: 21,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757.28 : 28,051.26 = 14,316.32 : x
  2. Step 2: Convert to fraction form
    18,757.28/28,051.26 = 14,316.32/x
  3. Step 3: Cross multiply
    18,757.28x = 28,051.26 × 14,316.32
  4. Step 4: Simplify right side
    18,757.28x = 401,590,814.56
  5. Step 5: Solve for x
    x = 401,590,814.56/18,757.28
  6. Step 6: Final answer
    x = 21,409.86

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1.5x scale

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.