Home / 30,613.65-45,932.01-20,845.05

Finding the Fourth Proportional to 30,613.65, 45,932.01 and 20,845.05

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Solution

The fourth proportional to 30,613.65, 45,932.01 and 20,845.05 is: 31,275.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,613.65 : 45,932.01 = 20,845.05 : x
  2. Step 2: Convert to fraction form
    30,613.65/45,932.01 = 20,845.05/x
  3. Step 3: Cross multiply
    30,613.65x = 45,932.01 × 20,845.05
  4. Step 4: Simplify right side
    30,613.65x = 957,455,045.05
  5. Step 5: Solve for x
    x = 957,455,045.05/30,613.65
  6. Step 6: Final answer
    x = 31,275.43

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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.