Home / 28,530.63-39,387.78-17,202.15

Finding the Fourth Proportional to 28,530.63, 39,387.78 and 17,202.15

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Solution

The fourth proportional to 28,530.63, 39,387.78 and 17,202.15 is: 23,748.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530.63 : 39,387.78 = 17,202.15 : x
  2. Step 2: Convert to fraction form
    28,530.63/39,387.78 = 17,202.15/x
  3. Step 3: Cross multiply
    28,530.63x = 39,387.78 × 17,202.15
  4. Step 4: Simplify right side
    28,530.63x = 677,554,499.73
  5. Step 5: Solve for x
    x = 677,554,499.73/28,530.63
  6. Step 6: Final answer
    x = 23,748.32

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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.