Home / 20,374.25-28,116.53-11,300.26

Finding the Fourth Proportional to 20,374.25, 28,116.53 and 11,300.26

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Solution

The fourth proportional to 20,374.25, 28,116.53 and 11,300.26 is: 15,594.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.25 : 28,116.53 = 11,300.26 : x
  2. Step 2: Convert to fraction form
    20,374.25/28,116.53 = 11,300.26/x
  3. Step 3: Cross multiply
    20,374.25x = 28,116.53 × 11,300.26
  4. Step 4: Simplify right side
    20,374.25x = 317,724,099.30
  5. Step 5: Solve for x
    x = 317,724,099.30/20,374.25
  6. Step 6: Final answer
    x = 15,594.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.