Home / 28,102.02-42,154.94-9,381.30

Finding the Fourth Proportional to 28,102.02, 42,154.94 and 9,381.30

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Solution

The fourth proportional to 28,102.02, 42,154.94 and 9,381.30 is: 14,072.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.02 : 42,154.94 = 9,381.30 : x
  2. Step 2: Convert to fraction form
    28,102.02/42,154.94 = 9,381.30/x
  3. Step 3: Cross multiply
    28,102.02x = 42,154.94 × 9,381.30
  4. Step 4: Simplify right side
    28,102.02x = 395,468,138.62
  5. Step 5: Solve for x
    x = 395,468,138.62/28,102.02
  6. Step 6: Final answer
    x = 14,072.59

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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.