Home / 28,626.11-42,933.69-8,904.90

Finding the Fourth Proportional to 28,626.11, 42,933.69 and 8,904.90

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Solution

The fourth proportional to 28,626.11, 42,933.69 and 8,904.90 is: 13,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,626.11 : 42,933.69 = 8,904.90 : x
  2. Step 2: Convert to fraction form
    28,626.11/42,933.69 = 8,904.90/x
  3. Step 3: Cross multiply
    28,626.11x = 42,933.69 × 8,904.90
  4. Step 4: Simplify right side
    28,626.11x = 382,320,216.08
  5. Step 5: Solve for x
    x = 382,320,216.08/28,626.11
  6. Step 6: Final answer
    x = 13,355.65

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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.