Home / 28,305.87-42,459.20-10,776.66

Finding the Fourth Proportional to 28,305.87, 42,459.20 and 10,776.66

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Solution

The fourth proportional to 28,305.87, 42,459.20 and 10,776.66 is: 16,165.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.87 : 42,459.20 = 10,776.66 : x
  2. Step 2: Convert to fraction form
    28,305.87/42,459.20 = 10,776.66/x
  3. Step 3: Cross multiply
    28,305.87x = 42,459.20 × 10,776.66
  4. Step 4: Simplify right side
    28,305.87x = 457,568,362.27
  5. Step 5: Solve for x
    x = 457,568,362.27/28,305.87
  6. Step 6: Final answer
    x = 16,165.14

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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.