Home / 20,390.33-30,579.94-5,595.74

Finding the Fourth Proportional to 20,390.33, 30,579.94 and 5,595.74

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Solution

The fourth proportional to 20,390.33, 30,579.94 and 5,595.74 is: 8,392.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390.33 : 30,579.94 = 5,595.74 : x
  2. Step 2: Convert to fraction form
    20,390.33/30,579.94 = 5,595.74/x
  3. Step 3: Cross multiply
    20,390.33x = 30,579.94 × 5,595.74
  4. Step 4: Simplify right side
    20,390.33x = 171,117,393.46
  5. Step 5: Solve for x
    x = 171,117,393.46/20,390.33
  6. Step 6: Final answer
    x = 8,392.09

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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.