Home / 20,530,138.24-28,329,671-12,268,561.06

Finding the Fourth Proportional to 20,530,138.24, 28,329,671 and 12,268,561.06

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Solution

The fourth proportional to 20,530,138.24, 28,329,671 and 12,268,561.06 is: 16,929,467.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530,138.24 : 28,329,671 = 12,268,561.06 : x
  2. Step 2: Convert to fraction form
    20,530,138.24/28,329,671 = 12,268,561.06/x
  3. Step 3: Cross multiply
    20,530,138.24x = 28,329,671 × 12,268,561.06
  4. Step 4: Simplify right side
    20,530,138.24x = 347,564,298,473,211.25
  5. Step 5: Solve for x
    x = 347,564,298,473,211.25/20,530,138.24
  6. Step 6: Final answer
    x = 16,929,467.03

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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.