Home / 20,556.04-30,837.15-7,405.33

Finding the Fourth Proportional to 20,556.04, 30,837.15 and 7,405.33

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Solution

The fourth proportional to 20,556.04, 30,837.15 and 7,405.33 is: 11,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.04 : 30,837.15 = 7,405.33 : x
  2. Step 2: Convert to fraction form
    20,556.04/30,837.15 = 7,405.33/x
  3. Step 3: Cross multiply
    20,556.04x = 30,837.15 × 7,405.33
  4. Step 4: Simplify right side
    20,556.04x = 228,359,272.01
  5. Step 5: Solve for x
    x = 228,359,272.01/20,556.04
  6. Step 6: Final answer
    x = 11,109.11

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1.5x scale

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.