Home / 31,995.81-44,133.66-19,420.56

Finding the Fourth Proportional to 31,995.81, 44,133.66 and 19,420.56

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Solution

The fourth proportional to 31,995.81, 44,133.66 and 19,420.56 is: 26,787.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,995.81 : 44,133.66 = 19,420.56 : x
  2. Step 2: Convert to fraction form
    31,995.81/44,133.66 = 19,420.56/x
  3. Step 3: Cross multiply
    31,995.81x = 44,133.66 × 19,420.56
  4. Step 4: Simplify right side
    31,995.81x = 857,100,392.05
  5. Step 5: Solve for x
    x = 857,100,392.05/31,995.81
  6. Step 6: Final answer
    x = 26,787.89

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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.