Home / 21,731,726.90-29,983,243.21-13,026,723.32

Finding the Fourth Proportional to 21,731,726.90, 29,983,243.21 and 13,026,723.32

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Solution

The fourth proportional to 21,731,726.90, 29,983,243.21 and 13,026,723.32 is: 17,972,957.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731,726.90 : 29,983,243.21 = 13,026,723.32 : x
  2. Step 2: Convert to fraction form
    21,731,726.90/29,983,243.21 = 13,026,723.32/x
  3. Step 3: Cross multiply
    21,731,726.90x = 29,983,243.21 × 13,026,723.32
  4. Step 4: Simplify right side
    21,731,726.90x = 390,583,413,575,329.94
  5. Step 5: Solve for x
    x = 390,583,413,575,329.94/21,731,726.90
  6. Step 6: Final answer
    x = 17,972,957.94

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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.