Home / 28,529.07-39,356.83-18,460.75

Finding the Fourth Proportional to 28,529.07, 39,356.83 and 18,460.75

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Solution

The fourth proportional to 28,529.07, 39,356.83 and 18,460.75 is: 25,467.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.07 : 39,356.83 = 18,460.75 : x
  2. Step 2: Convert to fraction form
    28,529.07/39,356.83 = 18,460.75/x
  3. Step 3: Cross multiply
    28,529.07x = 39,356.83 × 18,460.75
  4. Step 4: Simplify right side
    28,529.07x = 726,556,599.42
  5. Step 5: Solve for x
    x = 726,556,599.42/28,529.07
  6. Step 6: Final answer
    x = 25,467.24

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.