Home / 20,298.74-30,447.42-7,150.77

Finding the Fourth Proportional to 20,298.74, 30,447.42 and 7,150.77

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Solution

The fourth proportional to 20,298.74, 30,447.42 and 7,150.77 is: 10,725.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.74 : 30,447.42 = 7,150.77 : x
  2. Step 2: Convert to fraction form
    20,298.74/30,447.42 = 7,150.77/x
  3. Step 3: Cross multiply
    20,298.74x = 30,447.42 × 7,150.77
  4. Step 4: Simplify right side
    20,298.74x = 217,722,497.51
  5. Step 5: Solve for x
    x = 217,722,497.51/20,298.74
  6. Step 6: Final answer
    x = 10,725.91

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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.