Home / 28,116.22-42,195.09-13,325.18

Finding the Fourth Proportional to 28,116.22, 42,195.09 and 13,325.18

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Solution

The fourth proportional to 28,116.22, 42,195.09 and 13,325.18 is: 19,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.22 : 42,195.09 = 13,325.18 : x
  2. Step 2: Convert to fraction form
    28,116.22/42,195.09 = 13,325.18/x
  3. Step 3: Cross multiply
    28,116.22x = 42,195.09 × 13,325.18
  4. Step 4: Simplify right side
    28,116.22x = 562,257,245.71
  5. Step 5: Solve for x
    x = 562,257,245.71/28,116.22
  6. Step 6: Final answer
    x = 19,997.61

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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.