Home / 29,145.40-43,728.90-9,424.60

Finding the Fourth Proportional to 29,145.40, 43,728.90 and 9,424.60

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Solution

The fourth proportional to 29,145.40, 43,728.90 and 9,424.60 is: 14,140.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,145.40 : 43,728.90 = 9,424.60 : x
  2. Step 2: Convert to fraction form
    29,145.40/43,728.90 = 9,424.60/x
  3. Step 3: Cross multiply
    29,145.40x = 43,728.90 × 9,424.60
  4. Step 4: Simplify right side
    29,145.40x = 412,127,390.94
  5. Step 5: Solve for x
    x = 412,127,390.94/29,145.40
  6. Step 6: Final answer
    x = 14,140.39

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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.