Home / 20,597.76-28,424.66-11,166.26

Finding the Fourth Proportional to 20,597.76, 28,424.66 and 11,166.26

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Solution

The fourth proportional to 20,597.76, 28,424.66 and 11,166.26 is: 15,409.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.76 : 28,424.66 = 11,166.26 : x
  2. Step 2: Convert to fraction form
    20,597.76/28,424.66 = 11,166.26/x
  3. Step 3: Cross multiply
    20,597.76x = 28,424.66 × 11,166.26
  4. Step 4: Simplify right side
    20,597.76x = 317,396,946.02
  5. Step 5: Solve for x
    x = 317,396,946.02/20,597.76
  6. Step 6: Final answer
    x = 15,409.29

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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.