Home / 20,734.01-28,613.52-12,668.98

Finding the Fourth Proportional to 20,734.01, 28,613.52 and 12,668.98

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Solution

The fourth proportional to 20,734.01, 28,613.52 and 12,668.98 is: 17,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.01 : 28,613.52 = 12,668.98 : x
  2. Step 2: Convert to fraction form
    20,734.01/28,613.52 = 12,668.98/x
  3. Step 3: Cross multiply
    20,734.01x = 28,613.52 × 12,668.98
  4. Step 4: Simplify right side
    20,734.01x = 362,504,041.08
  5. Step 5: Solve for x
    x = 362,504,041.08/20,734.01
  6. Step 6: Final answer
    x = 17,483.55

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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.