Home / 20,101.10-30,128.64-9,556.16

Finding the Fourth Proportional to 20,101.10, 30,128.64 and 9,556.16

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Solution

The fourth proportional to 20,101.10, 30,128.64 and 9,556.16 is: 14,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.10 : 30,128.64 = 9,556.16 : x
  2. Step 2: Convert to fraction form
    20,101.10/30,128.64 = 9,556.16/x
  3. Step 3: Cross multiply
    20,101.10x = 30,128.64 × 9,556.16
  4. Step 4: Simplify right side
    20,101.10x = 287,913,953.78
  5. Step 5: Solve for x
    x = 287,913,953.78/20,101.10
  6. Step 6: Final answer
    x = 14,323.30

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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.