Home / 31,886.20-47,771.70-27,278.20

Finding the Fourth Proportional to 31,886.20, 47,771.70 and 27,278.20

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Solution

The fourth proportional to 31,886.20, 47,771.70 and 27,278.20 is: 40,868.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,886.20 : 47,771.70 = 27,278.20 : x
  2. Step 2: Convert to fraction form
    31,886.20/47,771.70 = 27,278.20/x
  3. Step 3: Cross multiply
    31,886.20x = 47,771.70 × 27,278.20
  4. Step 4: Simplify right side
    31,886.20x = 1,303,125,986.94
  5. Step 5: Solve for x
    x = 1,303,125,986.94/31,886.20
  6. Step 6: Final answer
    x = 40,868.02

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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.