Home / 28,396.62-42,595.09-11,747.63

Finding the Fourth Proportional to 28,396.62, 42,595.09 and 11,747.63

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Solution

The fourth proportional to 28,396.62, 42,595.09 and 11,747.63 is: 17,621.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,396.62 : 42,595.09 = 11,747.63 : x
  2. Step 2: Convert to fraction form
    28,396.62/42,595.09 = 11,747.63/x
  3. Step 3: Cross multiply
    28,396.62x = 42,595.09 × 11,747.63
  4. Step 4: Simplify right side
    28,396.62x = 500,391,434.26
  5. Step 5: Solve for x
    x = 500,391,434.26/28,396.62
  6. Step 6: Final answer
    x = 17,621.51

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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.