Home / 20,204.07-27,880.63-11,705.77

Finding the Fourth Proportional to 20,204.07, 27,880.63 and 11,705.77

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Solution

The fourth proportional to 20,204.07, 27,880.63 and 11,705.77 is: 16,153.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.07 : 27,880.63 = 11,705.77 : x
  2. Step 2: Convert to fraction form
    20,204.07/27,880.63 = 11,705.77/x
  3. Step 3: Cross multiply
    20,204.07x = 27,880.63 × 11,705.77
  4. Step 4: Simplify right side
    20,204.07x = 326,364,242.24
  5. Step 5: Solve for x
    x = 326,364,242.24/20,204.07
  6. Step 6: Final answer
    x = 16,153.39

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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.