Home / 21,583.30-32,366.44-10,486.70

Finding the Fourth Proportional to 21,583.30, 32,366.44 and 10,486.70

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Solution

The fourth proportional to 21,583.30, 32,366.44 and 10,486.70 is: 15,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583.30 : 32,366.44 = 10,486.70 : x
  2. Step 2: Convert to fraction form
    21,583.30/32,366.44 = 10,486.70/x
  3. Step 3: Cross multiply
    21,583.30x = 32,366.44 × 10,486.70
  4. Step 4: Simplify right side
    21,583.30x = 339,417,146.35
  5. Step 5: Solve for x
    x = 339,417,146.35/21,583.30
  6. Step 6: Final answer
    x = 15,725.92

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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.