Home / 20,232.89-27,925.04-12,685.77

Finding the Fourth Proportional to 20,232.89, 27,925.04 and 12,685.77

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Solution

The fourth proportional to 20,232.89, 27,925.04 and 12,685.77 is: 17,508.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.89 : 27,925.04 = 12,685.77 : x
  2. Step 2: Convert to fraction form
    20,232.89/27,925.04 = 12,685.77/x
  3. Step 3: Cross multiply
    20,232.89x = 27,925.04 × 12,685.77
  4. Step 4: Simplify right side
    20,232.89x = 354,250,571.25
  5. Step 5: Solve for x
    x = 354,250,571.25/20,232.89
  6. Step 6: Final answer
    x = 17,508.65

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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.