Home / 18,971.57-28,457.32-5,644.52

Finding the Fourth Proportional to 18,971.57, 28,457.32 and 5,644.52

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Solution

The fourth proportional to 18,971.57, 28,457.32 and 5,644.52 is: 8,466.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.57 : 28,457.32 = 5,644.52 : x
  2. Step 2: Convert to fraction form
    18,971.57/28,457.32 = 5,644.52/x
  3. Step 3: Cross multiply
    18,971.57x = 28,457.32 × 5,644.52
  4. Step 4: Simplify right side
    18,971.57x = 160,627,911.89
  5. Step 5: Solve for x
    x = 160,627,911.89/18,971.57
  6. Step 6: Final answer
    x = 8,466.77

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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.