Home / 21,420,058.20-29,559,715.31-11,630,521.32

Finding the Fourth Proportional to 21,420,058.20, 29,559,715.31 and 11,630,521.32

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Solution

The fourth proportional to 21,420,058.20, 29,559,715.31 and 11,630,521.32 is: 16,050,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420,058.20 : 29,559,715.31 = 11,630,521.32 : x
  2. Step 2: Convert to fraction form
    21,420,058.20/29,559,715.31 = 11,630,521.32/x
  3. Step 3: Cross multiply
    21,420,058.20x = 29,559,715.31 × 11,630,521.32
  4. Step 4: Simplify right side
    21,420,058.20x = 343,794,899,067,932.81
  5. Step 5: Solve for x
    x = 343,794,899,067,932.81/21,420,058.20
  6. Step 6: Final answer
    x = 16,050,138.42

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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.