Home / 28,119.91-42,196.88-12,325.85

Finding the Fourth Proportional to 28,119.91, 42,196.88 and 12,325.85

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Solution

The fourth proportional to 28,119.91, 42,196.88 and 12,325.85 is: 18,496.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.91 : 42,196.88 = 12,325.85 : x
  2. Step 2: Convert to fraction form
    28,119.91/42,196.88 = 12,325.85/x
  3. Step 3: Cross multiply
    28,119.91x = 42,196.88 × 12,325.85
  4. Step 4: Simplify right side
    28,119.91x = 520,112,628.77
  5. Step 5: Solve for x
    x = 520,112,628.77/28,119.91
  6. Step 6: Final answer
    x = 18,496.24

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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.