Home / 28,499.76-42,729.12-10,727.64

Finding the Fourth Proportional to 28,499.76, 42,729.12 and 10,727.64

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Solution

The fourth proportional to 28,499.76, 42,729.12 and 10,727.64 is: 16,083.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,499.76 : 42,729.12 = 10,727.64 : x
  2. Step 2: Convert to fraction form
    28,499.76/42,729.12 = 10,727.64/x
  3. Step 3: Cross multiply
    28,499.76x = 42,729.12 × 10,727.64
  4. Step 4: Simplify right side
    28,499.76x = 458,382,616.88
  5. Step 5: Solve for x
    x = 458,382,616.88/28,499.76
  6. Step 6: Final answer
    x = 16,083.74

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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.