Home / 20,101.84-30,152.40-8,253.04

Finding the Fourth Proportional to 20,101.84, 30,152.40 and 8,253.04

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Solution

The fourth proportional to 20,101.84, 30,152.40 and 8,253.04 is: 12,379.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.84 : 30,152.40 = 8,253.04 : x
  2. Step 2: Convert to fraction form
    20,101.84/30,152.40 = 8,253.04/x
  3. Step 3: Cross multiply
    20,101.84x = 30,152.40 × 8,253.04
  4. Step 4: Simplify right side
    20,101.84x = 248,848,963.30
  5. Step 5: Solve for x
    x = 248,848,963.30/20,101.84
  6. Step 6: Final answer
    x = 12,379.41

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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.