Home / 21,420,057.32-29,559,714.10-11,630,520.44

Finding the Fourth Proportional to 21,420,057.32, 29,559,714.10 and 11,630,520.44

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Solution

The fourth proportional to 21,420,057.32, 29,559,714.10 and 11,630,520.44 is: 16,050,137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420,057.32 : 29,559,714.10 = 11,630,520.44 : x
  2. Step 2: Convert to fraction form
    21,420,057.32/29,559,714.10 = 11,630,520.44/x
  3. Step 3: Cross multiply
    21,420,057.32x = 29,559,714.10 × 11,630,520.44
  4. Step 4: Simplify right side
    21,420,057.32x = 343,794,858,974,580.31
  5. Step 5: Solve for x
    x = 343,794,858,974,580.31/21,420,057.32
  6. Step 6: Final answer
    x = 16,050,137.21

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1.5x scale

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.