Home / 30,398.11-45,613.22-21,570.48

Finding the Fourth Proportional to 30,398.11, 45,613.22 and 21,570.48

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Solution

The fourth proportional to 30,398.11, 45,613.22 and 21,570.48 is: 32,367.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,398.11 : 45,613.22 = 21,570.48 : x
  2. Step 2: Convert to fraction form
    30,398.11/45,613.22 = 21,570.48/x
  3. Step 3: Cross multiply
    30,398.11x = 45,613.22 × 21,570.48
  4. Step 4: Simplify right side
    30,398.11x = 983,899,163.78
  5. Step 5: Solve for x
    x = 983,899,163.78/30,398.11
  6. Step 6: Final answer
    x = 32,367.12

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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.