Home / 28,544.62-39,378.43-18,476.30

Finding the Fourth Proportional to 28,544.62, 39,378.43 and 18,476.30

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Solution

The fourth proportional to 28,544.62, 39,378.43 and 18,476.30 is: 25,488.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.62 : 39,378.43 = 18,476.30 : x
  2. Step 2: Convert to fraction form
    28,544.62/39,378.43 = 18,476.30/x
  3. Step 3: Cross multiply
    28,544.62x = 39,378.43 × 18,476.30
  4. Step 4: Simplify right side
    28,544.62x = 727,567,686.21
  5. Step 5: Solve for x
    x = 727,567,686.21/28,544.62
  6. Step 6: Final answer
    x = 25,488.79

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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.