Home / 19,621.36-27,085.32-12,070.75

Finding the Fourth Proportional to 19,621.36, 27,085.32 and 12,070.75

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Solution

The fourth proportional to 19,621.36, 27,085.32 and 12,070.75 is: 16,662.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.36 : 27,085.32 = 12,070.75 : x
  2. Step 2: Convert to fraction form
    19,621.36/27,085.32 = 12,070.75/x
  3. Step 3: Cross multiply
    19,621.36x = 27,085.32 × 12,070.75
  4. Step 4: Simplify right side
    19,621.36x = 326,940,126.39
  5. Step 5: Solve for x
    x = 326,940,126.39/19,621.36
  6. Step 6: Final answer
    x = 16,662.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.