Home / 28,508.09-42,765.77-10,975.64

Finding the Fourth Proportional to 28,508.09, 42,765.77 and 10,975.64

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Solution

The fourth proportional to 28,508.09, 42,765.77 and 10,975.64 is: 16,464.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.09 : 42,765.77 = 10,975.64 : x
  2. Step 2: Convert to fraction form
    28,508.09/42,765.77 = 10,975.64/x
  3. Step 3: Cross multiply
    28,508.09x = 42,765.77 × 10,975.64
  4. Step 4: Simplify right side
    28,508.09x = 469,381,509.45
  5. Step 5: Solve for x
    x = 469,381,509.45/28,508.09
  6. Step 6: Final answer
    x = 16,464.86

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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.