Home / 21,214.26-31,822.02-10,122.12

Finding the Fourth Proportional to 21,214.26, 31,822.02 and 10,122.12

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Solution

The fourth proportional to 21,214.26, 31,822.02 and 10,122.12 is: 15,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.26 : 31,822.02 = 10,122.12 : x
  2. Step 2: Convert to fraction form
    21,214.26/31,822.02 = 10,122.12/x
  3. Step 3: Cross multiply
    21,214.26x = 31,822.02 × 10,122.12
  4. Step 4: Simplify right side
    21,214.26x = 322,106,305.08
  5. Step 5: Solve for x
    x = 322,106,305.08/21,214.26
  6. Step 6: Final answer
    x = 15,183.48

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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.