Home / 28,209.06-42,318.46-9,490.90

Finding the Fourth Proportional to 28,209.06, 42,318.46 and 9,490.90

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Solution

The fourth proportional to 28,209.06, 42,318.46 and 9,490.90 is: 14,237.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.06 : 42,318.46 = 9,490.90 : x
  2. Step 2: Convert to fraction form
    28,209.06/42,318.46 = 9,490.90/x
  3. Step 3: Cross multiply
    28,209.06x = 42,318.46 × 9,490.90
  4. Step 4: Simplify right side
    28,209.06x = 401,640,272.01
  5. Step 5: Solve for x
    x = 401,640,272.01/28,209.06
  6. Step 6: Final answer
    x = 14,237.99

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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.