Home / 22,785.70-31,431.63-13,352.44

Finding the Fourth Proportional to 22,785.70, 31,431.63 and 13,352.44

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Solution

The fourth proportional to 22,785.70, 31,431.63 and 13,352.44 is: 18,418.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,785.70 : 31,431.63 = 13,352.44 : x
  2. Step 2: Convert to fraction form
    22,785.70/31,431.63 = 13,352.44/x
  3. Step 3: Cross multiply
    22,785.70x = 31,431.63 × 13,352.44
  4. Step 4: Simplify right side
    22,785.70x = 419,688,953.68
  5. Step 5: Solve for x
    x = 419,688,953.68/22,785.70
  6. Step 6: Final answer
    x = 18,418.96

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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.