Home / 31,913.44-44,011.89-19,977.90

Finding the Fourth Proportional to 31,913.44, 44,011.89 and 19,977.90

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Solution

The fourth proportional to 31,913.44, 44,011.89 and 19,977.90 is: 27,551.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,913.44 : 44,011.89 = 19,977.90 : x
  2. Step 2: Convert to fraction form
    31,913.44/44,011.89 = 19,977.90/x
  3. Step 3: Cross multiply
    31,913.44x = 44,011.89 × 19,977.90
  4. Step 4: Simplify right side
    31,913.44x = 879,265,137.23
  5. Step 5: Solve for x
    x = 879,265,137.23/31,913.44
  6. Step 6: Final answer
    x = 27,551.56

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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.