Home / 19,428.41-26,822.27-12,823.61

Finding the Fourth Proportional to 19,428.41, 26,822.27 and 12,823.61

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Solution

The fourth proportional to 19,428.41, 26,822.27 and 12,823.61 is: 17,703.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.41 : 26,822.27 = 12,823.61 : x
  2. Step 2: Convert to fraction form
    19,428.41/26,822.27 = 12,823.61/x
  3. Step 3: Cross multiply
    19,428.41x = 26,822.27 × 12,823.61
  4. Step 4: Simplify right side
    19,428.41x = 343,958,265.68
  5. Step 5: Solve for x
    x = 343,958,265.68/19,428.41
  6. Step 6: Final answer
    x = 17,703.88

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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.