Home / 19,004.22-28,510.43-5,678.28

Finding the Fourth Proportional to 19,004.22, 28,510.43 and 5,678.28

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Solution

The fourth proportional to 19,004.22, 28,510.43 and 5,678.28 is: 8,518.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,004.22 : 28,510.43 = 5,678.28 : x
  2. Step 2: Convert to fraction form
    19,004.22/28,510.43 = 5,678.28/x
  3. Step 3: Cross multiply
    19,004.22x = 28,510.43 × 5,678.28
  4. Step 4: Simplify right side
    19,004.22x = 161,890,176.07
  5. Step 5: Solve for x
    x = 161,890,176.07/19,004.22
  6. Step 6: Final answer
    x = 8,518.64

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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.