Home / 51,311.85-70,809.67-28,651.22

Finding the Fourth Proportional to 51,311.85, 70,809.67 and 28,651.22

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Solution

The fourth proportional to 51,311.85, 70,809.67 and 28,651.22 is: 39,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,311.85 : 70,809.67 = 28,651.22 : x
  2. Step 2: Convert to fraction form
    51,311.85/70,809.67 = 28,651.22/x
  3. Step 3: Cross multiply
    51,311.85x = 70,809.67 × 28,651.22
  4. Step 4: Simplify right side
    51,311.85x = 2,028,783,433.30
  5. Step 5: Solve for x
    x = 2,028,783,433.30/51,311.85
  6. Step 6: Final answer
    x = 39,538.30

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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.