Home / 28,090.92-42,142.46-8,371.07

Finding the Fourth Proportional to 28,090.92, 42,142.46 and 8,371.07

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Solution

The fourth proportional to 28,090.92, 42,142.46 and 8,371.07 is: 12,558.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.92 : 42,142.46 = 8,371.07 : x
  2. Step 2: Convert to fraction form
    28,090.92/42,142.46 = 8,371.07/x
  3. Step 3: Cross multiply
    28,090.92x = 42,142.46 × 8,371.07
  4. Step 4: Simplify right side
    28,090.92x = 352,777,482.63
  5. Step 5: Solve for x
    x = 352,777,482.63/28,090.92
  6. Step 6: Final answer
    x = 12,558.42

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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.