Home / 22,435.29-30,961.71-13,486.95

Finding the Fourth Proportional to 22,435.29, 30,961.71 and 13,486.95

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Solution

The fourth proportional to 22,435.29, 30,961.71 and 13,486.95 is: 18,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,435.29 : 30,961.71 = 13,486.95 : x
  2. Step 2: Convert to fraction form
    22,435.29/30,961.71 = 13,486.95/x
  3. Step 3: Cross multiply
    22,435.29x = 30,961.71 × 13,486.95
  4. Step 4: Simplify right side
    22,435.29x = 417,579,034.68
  5. Step 5: Solve for x
    x = 417,579,034.68/22,435.29
  6. Step 6: Final answer
    x = 18,612.60

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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.