Home / 25,429.32-38,128.19-10,620.09

Finding the Fourth Proportional to 25,429.32, 38,128.19 and 10,620.09

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Solution

The fourth proportional to 25,429.32, 38,128.19 and 10,620.09 is: 15,923.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,429.32 : 38,128.19 = 10,620.09 : x
  2. Step 2: Convert to fraction form
    25,429.32/38,128.19 = 10,620.09/x
  3. Step 3: Cross multiply
    25,429.32x = 38,128.19 × 10,620.09
  4. Step 4: Simplify right side
    25,429.32x = 404,924,756.24
  5. Step 5: Solve for x
    x = 404,924,756.24/25,429.32
  6. Step 6: Final answer
    x = 15,923.54

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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.