Home / 19,319.34-28,968.36-5,988.65

Finding the Fourth Proportional to 19,319.34, 28,968.36 and 5,988.65

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Solution

The fourth proportional to 19,319.34, 28,968.36 and 5,988.65 is: 8,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.34 : 28,968.36 = 5,988.65 : x
  2. Step 2: Convert to fraction form
    19,319.34/28,968.36 = 5,988.65/x
  3. Step 3: Cross multiply
    19,319.34x = 28,968.36 × 5,988.65
  4. Step 4: Simplify right side
    19,319.34x = 173,481,201.81
  5. Step 5: Solve for x
    x = 173,481,201.81/19,319.34
  6. Step 6: Final answer
    x = 8,979.66

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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.