Home / 31,929,878.91-44,069,644.31-20,897,557.41

Finding the Fourth Proportional to 31,929,878.91, 44,069,644.31 and 20,897,557.41

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Solution

The fourth proportional to 31,929,878.91, 44,069,644.31 and 20,897,557.41 is: 28,842,825.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,929,878.91 : 44,069,644.31 = 20,897,557.41 : x
  2. Step 2: Convert to fraction form
    31,929,878.91/44,069,644.31 = 20,897,557.41/x
  3. Step 3: Cross multiply
    31,929,878.91x = 44,069,644.31 × 20,897,557.41
  4. Step 4: Simplify right side
    31,929,878.91x = 920,947,921,902,017
  5. Step 5: Solve for x
    x = 920,947,921,902,017/31,929,878.91
  6. Step 6: Final answer
    x = 28,842,825.38

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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.