Home / 30,556.68-42,168.48-17,127.96

Finding the Fourth Proportional to 30,556.68, 42,168.48 and 17,127.96

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Solution

The fourth proportional to 30,556.68, 42,168.48 and 17,127.96 is: 23,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.68 : 42,168.48 = 17,127.96 : x
  2. Step 2: Convert to fraction form
    30,556.68/42,168.48 = 17,127.96/x
  3. Step 3: Cross multiply
    30,556.68x = 42,168.48 × 17,127.96
  4. Step 4: Simplify right side
    30,556.68x = 722,260,038.70
  5. Step 5: Solve for x
    x = 722,260,038.70/30,556.68
  6. Step 6: Final answer
    x = 23,636.73

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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.