Home / 28,305.72-42,453.18-10,777.32

Finding the Fourth Proportional to 28,305.72, 42,453.18 and 10,777.32

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Solution

The fourth proportional to 28,305.72, 42,453.18 and 10,777.32 is: 16,163.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.72 : 42,453.18 = 10,777.32 : x
  2. Step 2: Convert to fraction form
    28,305.72/42,453.18 = 10,777.32/x
  3. Step 3: Cross multiply
    28,305.72x = 42,453.18 × 10,777.32
  4. Step 4: Simplify right side
    28,305.72x = 457,531,505.88
  5. Step 5: Solve for x
    x = 457,531,505.88/28,305.72
  6. Step 6: Final answer
    x = 16,163.92

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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.