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Finding the Fourth Proportional to 71,017.41, 106,526.94 and 21,096.30

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Solution

The fourth proportional to 71,017.41, 106,526.94 and 21,096.30 is: 31,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,017.41 : 106,526.94 = 21,096.30 : x
  2. Step 2: Convert to fraction form
    71,017.41/106,526.94 = 21,096.30/x
  3. Step 3: Cross multiply
    71,017.41x = 106,526.94 × 21,096.30
  4. Step 4: Simplify right side
    71,017.41x = 2,247,324,284.32
  5. Step 5: Solve for x
    x = 2,247,324,284.32/71,017.41
  6. Step 6: Final answer
    x = 31,644.70

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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.