Home / 20,012.42-30,034.02-18,984.62

Finding the Fourth Proportional to 20,012.42, 30,034.02 and 18,984.62

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Solution

The fourth proportional to 20,012.42, 30,034.02 and 18,984.62 is: 28,491.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.42 : 30,034.02 = 18,984.62 : x
  2. Step 2: Convert to fraction form
    20,012.42/30,034.02 = 18,984.62/x
  3. Step 3: Cross multiply
    20,012.42x = 30,034.02 × 18,984.62
  4. Step 4: Simplify right side
    20,012.42x = 570,184,456.77
  5. Step 5: Solve for x
    x = 570,184,456.77/20,012.42
  6. Step 6: Final answer
    x = 28,491.53

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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.