Home / 28,374.02-42,486.69-20,008.73

Finding the Fourth Proportional to 28,374.02, 42,486.69 and 20,008.73

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Solution

The fourth proportional to 28,374.02, 42,486.69 and 20,008.73 is: 29,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.02 : 42,486.69 = 20,008.73 : x
  2. Step 2: Convert to fraction form
    28,374.02/42,486.69 = 20,008.73/x
  3. Step 3: Cross multiply
    28,374.02x = 42,486.69 × 20,008.73
  4. Step 4: Simplify right side
    28,374.02x = 850,104,708.80
  5. Step 5: Solve for x
    x = 850,104,708.80/28,374.02
  6. Step 6: Final answer
    x = 29,960.67

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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.