Home / 31,846.81-43,848.21-28,894.36

Finding the Fourth Proportional to 31,846.81, 43,848.21 and 28,894.36

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Solution

The fourth proportional to 31,846.81, 43,848.21 and 28,894.36 is: 39,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,846.81 : 43,848.21 = 28,894.36 : x
  2. Step 2: Convert to fraction form
    31,846.81/43,848.21 = 28,894.36/x
  3. Step 3: Cross multiply
    31,846.81x = 43,848.21 × 28,894.36
  4. Step 4: Simplify right side
    31,846.81x = 1,266,965,965.10
  5. Step 5: Solve for x
    x = 1,266,965,965.10/31,846.81
  6. Step 6: Final answer
    x = 39,783.14

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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.