Home / 30,310.22-45,548.39-28,590.68

Finding the Fourth Proportional to 30,310.22, 45,548.39 and 28,590.68

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Solution

The fourth proportional to 30,310.22, 45,548.39 and 28,590.68 is: 42,964.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,310.22 : 45,548.39 = 28,590.68 : x
  2. Step 2: Convert to fraction form
    30,310.22/45,548.39 = 28,590.68/x
  3. Step 3: Cross multiply
    30,310.22x = 45,548.39 × 28,590.68
  4. Step 4: Simplify right side
    30,310.22x = 1,302,259,286.74
  5. Step 5: Solve for x
    x = 1,302,259,286.74/30,310.22
  6. Step 6: Final answer
    x = 42,964.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.