Home / 19,308.48-28,963.44-5,457.84

Finding the Fourth Proportional to 19,308.48, 28,963.44 and 5,457.84

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Solution

The fourth proportional to 19,308.48, 28,963.44 and 5,457.84 is: 8,186.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,308.48 : 28,963.44 = 5,457.84 : x
  2. Step 2: Convert to fraction form
    19,308.48/28,963.44 = 5,457.84/x
  3. Step 3: Cross multiply
    19,308.48x = 28,963.44 × 5,457.84
  4. Step 4: Simplify right side
    19,308.48x = 158,077,821.37
  5. Step 5: Solve for x
    x = 158,077,821.37/19,308.48
  6. Step 6: Final answer
    x = 8,186.96

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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.