Home / 28,107.05-42,139.82-17,011.30

Finding the Fourth Proportional to 28,107.05, 42,139.82 and 17,011.30

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Solution

The fourth proportional to 28,107.05, 42,139.82 and 17,011.30 is: 25,504.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.05 : 42,139.82 = 17,011.30 : x
  2. Step 2: Convert to fraction form
    28,107.05/42,139.82 = 17,011.30/x
  3. Step 3: Cross multiply
    28,107.05x = 42,139.82 × 17,011.30
  4. Step 4: Simplify right side
    28,107.05x = 716,853,119.97
  5. Step 5: Solve for x
    x = 716,853,119.97/28,107.05
  6. Step 6: Final answer
    x = 25,504.39

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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.