Home / 20,179.09-30,266.59-5,389.50

Finding the Fourth Proportional to 20,179.09, 30,266.59 and 5,389.50

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Solution

The fourth proportional to 20,179.09, 30,266.59 and 5,389.50 is: 8,083.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.09 : 30,266.59 = 5,389.50 : x
  2. Step 2: Convert to fraction form
    20,179.09/30,266.59 = 5,389.50/x
  3. Step 3: Cross multiply
    20,179.09x = 30,266.59 × 5,389.50
  4. Step 4: Simplify right side
    20,179.09x = 163,121,773.33
  5. Step 5: Solve for x
    x = 163,121,773.33/20,179.09
  6. Step 6: Final answer
    x = 8,083.70

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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.