Home / 30,177.85-41,661.93-20,632.09

Finding the Fourth Proportional to 30,177.85, 41,661.93 and 20,632.09

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Solution

The fourth proportional to 30,177.85, 41,661.93 and 20,632.09 is: 28,483.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,177.85 : 41,661.93 = 20,632.09 : x
  2. Step 2: Convert to fraction form
    30,177.85/41,661.93 = 20,632.09/x
  3. Step 3: Cross multiply
    30,177.85x = 41,661.93 × 20,632.09
  4. Step 4: Simplify right side
    30,177.85x = 859,572,689.33
  5. Step 5: Solve for x
    x = 859,572,689.33/30,177.85
  6. Step 6: Final answer
    x = 28,483.56

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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.