Home / 28,178.36-42,255.04-8,453.24

Finding the Fourth Proportional to 28,178.36, 42,255.04 and 8,453.24

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Solution

The fourth proportional to 28,178.36, 42,255.04 and 8,453.24 is: 12,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178.36 : 42,255.04 = 8,453.24 : x
  2. Step 2: Convert to fraction form
    28,178.36/42,255.04 = 8,453.24/x
  3. Step 3: Cross multiply
    28,178.36x = 42,255.04 × 8,453.24
  4. Step 4: Simplify right side
    28,178.36x = 357,191,994.33
  5. Step 5: Solve for x
    x = 357,191,994.33/28,178.36
  6. Step 6: Final answer
    x = 12,676.11

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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.