Home / 30,614.15-45,932.76-20,845.55

Finding the Fourth Proportional to 30,614.15, 45,932.76 and 20,845.55

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Solution

The fourth proportional to 30,614.15, 45,932.76 and 20,845.55 is: 31,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,614.15 : 45,932.76 = 20,845.55 : x
  2. Step 2: Convert to fraction form
    30,614.15/45,932.76 = 20,845.55/x
  3. Step 3: Cross multiply
    30,614.15x = 45,932.76 × 20,845.55
  4. Step 4: Simplify right side
    30,614.15x = 957,493,415.55
  5. Step 5: Solve for x
    x = 957,493,415.55/30,614.15
  6. Step 6: Final answer
    x = 31,276.18

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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.