Home / 20,504.88-28,298.87-12,552.40

Finding the Fourth Proportional to 20,504.88, 28,298.87 and 12,552.40

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Solution

The fourth proportional to 20,504.88, 28,298.87 and 12,552.40 is: 17,323.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.88 : 28,298.87 = 12,552.40 : x
  2. Step 2: Convert to fraction form
    20,504.88/28,298.87 = 12,552.40/x
  3. Step 3: Cross multiply
    20,504.88x = 28,298.87 × 12,552.40
  4. Step 4: Simplify right side
    20,504.88x = 355,218,735.79
  5. Step 5: Solve for x
    x = 355,218,735.79/20,504.88
  6. Step 6: Final answer
    x = 17,323.62

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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.