Home / 19,312.75-28,971.60-5,461.75

Finding the Fourth Proportional to 19,312.75, 28,971.60 and 5,461.75

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Solution

The fourth proportional to 19,312.75, 28,971.60 and 5,461.75 is: 8,193.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.75 : 28,971.60 = 5,461.75 : x
  2. Step 2: Convert to fraction form
    19,312.75/28,971.60 = 5,461.75/x
  3. Step 3: Cross multiply
    19,312.75x = 28,971.60 × 5,461.75
  4. Step 4: Simplify right side
    19,312.75x = 158,235,636.30
  5. Step 5: Solve for x
    x = 158,235,636.30/19,312.75
  6. Step 6: Final answer
    x = 8,193.32

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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.