Home / 20,494.07-30,725.51-8,651.47

Finding the Fourth Proportional to 20,494.07, 30,725.51 and 8,651.47

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Solution

The fourth proportional to 20,494.07, 30,725.51 and 8,651.47 is: 12,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.07 : 30,725.51 = 8,651.47 : x
  2. Step 2: Convert to fraction form
    20,494.07/30,725.51 = 8,651.47/x
  3. Step 3: Cross multiply
    20,494.07x = 30,725.51 × 8,651.47
  4. Step 4: Simplify right side
    20,494.07x = 265,820,828.00
  5. Step 5: Solve for x
    x = 265,820,828.00/20,494.07
  6. Step 6: Final answer
    x = 12,970.62

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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.