Home / 21,284.57-31,896.96-16,822.62

Finding the Fourth Proportional to 21,284.57, 31,896.96 and 16,822.62

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Solution

The fourth proportional to 21,284.57, 31,896.96 and 16,822.62 is: 25,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284.57 : 31,896.96 = 16,822.62 : x
  2. Step 2: Convert to fraction form
    21,284.57/31,896.96 = 16,822.62/x
  3. Step 3: Cross multiply
    21,284.57x = 31,896.96 × 16,822.62
  4. Step 4: Simplify right side
    21,284.57x = 536,590,374.15
  5. Step 5: Solve for x
    x = 536,590,374.15/21,284.57
  6. Step 6: Final answer
    x = 25,210.30

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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.