Home / 30,613.20-45,914.76-28,620.72

Finding the Fourth Proportional to 30,613.20, 45,914.76 and 28,620.72

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Solution

The fourth proportional to 30,613.20, 45,914.76 and 28,620.72 is: 42,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,613.20 : 45,914.76 = 28,620.72 : x
  2. Step 2: Convert to fraction form
    30,613.20/45,914.76 = 28,620.72/x
  3. Step 3: Cross multiply
    30,613.20x = 45,914.76 × 28,620.72
  4. Step 4: Simplify right side
    30,613.20x = 1,314,113,489.83
  5. Step 5: Solve for x
    x = 1,314,113,489.83/30,613.20
  6. Step 6: Final answer
    x = 42,926.37

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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.