Home / 31,393,996.88-43,296,738-20,369,883.92

Finding the Fourth Proportional to 31,393,996.88, 43,296,738 and 20,369,883.92

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Solution

The fourth proportional to 31,393,996.88, 43,296,738 and 20,369,883.92 is: 28,092,935.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,393,996.88 : 43,296,738 = 20,369,883.92 : x
  2. Step 2: Convert to fraction form
    31,393,996.88/43,296,738 = 20,369,883.92/x
  3. Step 3: Cross multiply
    31,393,996.88x = 43,296,738 × 20,369,883.92
  4. Step 4: Simplify right side
    31,393,996.88x = 881,949,527,174,653
  5. Step 5: Solve for x
    x = 881,949,527,174,653/31,393,996.88
  6. Step 6: Final answer
    x = 28,092,935.43

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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.