Home / 20,270.90-30,471.73-18,796.95

Finding the Fourth Proportional to 20,270.90, 30,471.73 and 18,796.95

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Solution

The fourth proportional to 20,270.90, 30,471.73 and 18,796.95 is: 28,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.90 : 30,471.73 = 18,796.95 : x
  2. Step 2: Convert to fraction form
    20,270.90/30,471.73 = 18,796.95/x
  3. Step 3: Cross multiply
    20,270.90x = 30,471.73 × 18,796.95
  4. Step 4: Simplify right side
    20,270.90x = 572,775,585.22
  5. Step 5: Solve for x
    x = 572,775,585.22/20,270.90
  6. Step 6: Final answer
    x = 28,256.05

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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.