Home / 30,610.08-45,929.25-13,975.22

Finding the Fourth Proportional to 30,610.08, 45,929.25 and 13,975.22

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Solution

The fourth proportional to 30,610.08, 45,929.25 and 13,975.22 is: 20,969.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610.08 : 45,929.25 = 13,975.22 : x
  2. Step 2: Convert to fraction form
    30,610.08/45,929.25 = 13,975.22/x
  3. Step 3: Cross multiply
    30,610.08x = 45,929.25 × 13,975.22
  4. Step 4: Simplify right side
    30,610.08x = 641,871,143.54
  5. Step 5: Solve for x
    x = 641,871,143.54/30,610.08
  6. Step 6: Final answer
    x = 20,969.27

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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.