Home / 28,805.64-39,759.18-18,759.16

Finding the Fourth Proportional to 28,805.64, 39,759.18 and 18,759.16

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Solution

The fourth proportional to 28,805.64, 39,759.18 and 18,759.16 is: 25,892.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.64 : 39,759.18 = 18,759.16 : x
  2. Step 2: Convert to fraction form
    28,805.64/39,759.18 = 18,759.16/x
  3. Step 3: Cross multiply
    28,805.64x = 39,759.18 × 18,759.16
  4. Step 4: Simplify right side
    28,805.64x = 745,848,819.09
  5. Step 5: Solve for x
    x = 745,848,819.09/28,805.64
  6. Step 6: Final answer
    x = 25,892.46

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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.