Home / 28,809.26-39,742.65-19,251.50

Finding the Fourth Proportional to 28,809.26, 39,742.65 and 19,251.50

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Solution

The fourth proportional to 28,809.26, 39,742.65 and 19,251.50 is: 26,557.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.26 : 39,742.65 = 19,251.50 : x
  2. Step 2: Convert to fraction form
    28,809.26/39,742.65 = 19,251.50/x
  3. Step 3: Cross multiply
    28,809.26x = 39,742.65 × 19,251.50
  4. Step 4: Simplify right side
    28,809.26x = 765,105,539.54
  5. Step 5: Solve for x
    x = 765,105,539.54/28,809.26
  6. Step 6: Final answer
    x = 26,557.62

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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.