Home / 30,254.89-41,708.46-20,179.65

Finding the Fourth Proportional to 30,254.89, 41,708.46 and 20,179.65

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Solution

The fourth proportional to 30,254.89, 41,708.46 and 20,179.65 is: 27,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,254.89 : 41,708.46 = 20,179.65 : x
  2. Step 2: Convert to fraction form
    30,254.89/41,708.46 = 20,179.65/x
  3. Step 3: Cross multiply
    30,254.89x = 41,708.46 × 20,179.65
  4. Step 4: Simplify right side
    30,254.89x = 841,662,124.84
  5. Step 5: Solve for x
    x = 841,662,124.84/30,254.89
  6. Step 6: Final answer
    x = 27,819.05

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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.