Home / 22,382.09-30,885.77-12,822.02

Finding the Fourth Proportional to 22,382.09, 30,885.77 and 12,822.02

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Solution

The fourth proportional to 22,382.09, 30,885.77 and 12,822.02 is: 17,693.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,382.09 : 30,885.77 = 12,822.02 : x
  2. Step 2: Convert to fraction form
    22,382.09/30,885.77 = 12,822.02/x
  3. Step 3: Cross multiply
    22,382.09x = 30,885.77 × 12,822.02
  4. Step 4: Simplify right side
    22,382.09x = 396,017,960.66
  5. Step 5: Solve for x
    x = 396,017,960.66/22,382.09
  6. Step 6: Final answer
    x = 17,693.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.