Home / 20,504.03-28,302.55-12,748.91

Finding the Fourth Proportional to 20,504.03, 28,302.55 and 12,748.91

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Solution

The fourth proportional to 20,504.03, 28,302.55 and 12,748.91 is: 17,597.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.03 : 28,302.55 = 12,748.91 : x
  2. Step 2: Convert to fraction form
    20,504.03/28,302.55 = 12,748.91/x
  3. Step 3: Cross multiply
    20,504.03x = 28,302.55 × 12,748.91
  4. Step 4: Simplify right side
    20,504.03x = 360,826,662.72
  5. Step 5: Solve for x
    x = 360,826,662.72/20,504.03
  6. Step 6: Final answer
    x = 17,597.84

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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.