Home / 21,322.15-31,983.35-5,526.10

Finding the Fourth Proportional to 21,322.15, 31,983.35 and 5,526.10

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Solution

The fourth proportional to 21,322.15, 31,983.35 and 5,526.10 is: 8,289.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.15 : 31,983.35 = 5,526.10 : x
  2. Step 2: Convert to fraction form
    21,322.15/31,983.35 = 5,526.10/x
  3. Step 3: Cross multiply
    21,322.15x = 31,983.35 × 5,526.10
  4. Step 4: Simplify right side
    21,322.15x = 176,743,190.44
  5. Step 5: Solve for x
    x = 176,743,190.44/21,322.15
  6. Step 6: Final answer
    x = 8,289.18

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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.