Home / 19,284.42-28,943.01-13,751.31

Finding the Fourth Proportional to 19,284.42, 28,943.01 and 13,751.31

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Solution

The fourth proportional to 19,284.42, 28,943.01 and 13,751.31 is: 20,638.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,284.42 : 28,943.01 = 13,751.31 : x
  2. Step 2: Convert to fraction form
    19,284.42/28,943.01 = 13,751.31/x
  3. Step 3: Cross multiply
    19,284.42x = 28,943.01 × 13,751.31
  4. Step 4: Simplify right side
    19,284.42x = 398,004,302.84
  5. Step 5: Solve for x
    x = 398,004,302.84/19,284.42
  6. Step 6: Final answer
    x = 20,638.65

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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.