Home / 34,540.33-47,667.41-20,392.87

Finding the Fourth Proportional to 34,540.33, 47,667.41 and 20,392.87

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Solution

The fourth proportional to 34,540.33, 47,667.41 and 20,392.87 is: 28,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,540.33 : 47,667.41 = 20,392.87 : x
  2. Step 2: Convert to fraction form
    34,540.33/47,667.41 = 20,392.87/x
  3. Step 3: Cross multiply
    34,540.33x = 47,667.41 × 20,392.87
  4. Step 4: Simplify right side
    34,540.33x = 972,075,295.37
  5. Step 5: Solve for x
    x = 972,075,295.37/34,540.33
  6. Step 6: Final answer
    x = 28,143.20

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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.