Home / 20,292.22-28,001.88-11,339.26

Finding the Fourth Proportional to 20,292.22, 28,001.88 and 11,339.26

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Solution

The fourth proportional to 20,292.22, 28,001.88 and 11,339.26 is: 15,647.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.22 : 28,001.88 = 11,339.26 : x
  2. Step 2: Convert to fraction form
    20,292.22/28,001.88 = 11,339.26/x
  3. Step 3: Cross multiply
    20,292.22x = 28,001.88 × 11,339.26
  4. Step 4: Simplify right side
    20,292.22x = 317,520,597.81
  5. Step 5: Solve for x
    x = 317,520,597.81/20,292.22
  6. Step 6: Final answer
    x = 15,647.41

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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.