Home / 28,008.02-42,019.11-8,286.50

Finding the Fourth Proportional to 28,008.02, 42,019.11 and 8,286.50

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Solution

The fourth proportional to 28,008.02, 42,019.11 and 8,286.50 is: 12,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.02 : 42,019.11 = 8,286.50 : x
  2. Step 2: Convert to fraction form
    28,008.02/42,019.11 = 8,286.50/x
  3. Step 3: Cross multiply
    28,008.02x = 42,019.11 × 8,286.50
  4. Step 4: Simplify right side
    28,008.02x = 348,191,355.02
  5. Step 5: Solve for x
    x = 348,191,355.02/28,008.02
  6. Step 6: Final answer
    x = 12,431.84

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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.