Home / 28,968.72-43,457.78-8,973.54

Finding the Fourth Proportional to 28,968.72, 43,457.78 and 8,973.54

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Solution

The fourth proportional to 28,968.72, 43,457.78 and 8,973.54 is: 13,461.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.72 : 43,457.78 = 8,973.54 : x
  2. Step 2: Convert to fraction form
    28,968.72/43,457.78 = 8,973.54/x
  3. Step 3: Cross multiply
    28,968.72x = 43,457.78 × 8,973.54
  4. Step 4: Simplify right side
    28,968.72x = 389,970,127.14
  5. Step 5: Solve for x
    x = 389,970,127.14/28,968.72
  6. Step 6: Final answer
    x = 13,461.77

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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.