Home / 31,548.89-47,340.74-18,238.25

Finding the Fourth Proportional to 31,548.89, 47,340.74 and 18,238.25

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Solution

The fourth proportional to 31,548.89, 47,340.74 and 18,238.25 is: 27,367.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548.89 : 47,340.74 = 18,238.25 : x
  2. Step 2: Convert to fraction form
    31,548.89/47,340.74 = 18,238.25/x
  3. Step 3: Cross multiply
    31,548.89x = 47,340.74 × 18,238.25
  4. Step 4: Simplify right side
    31,548.89x = 863,412,251.31
  5. Step 5: Solve for x
    x = 863,412,251.31/31,548.89
  6. Step 6: Final answer
    x = 27,367.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.