Home / 22,989.36-31,725.27-13,435.86

Finding the Fourth Proportional to 22,989.36, 31,725.27 and 13,435.86

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Solution

The fourth proportional to 22,989.36, 31,725.27 and 13,435.86 is: 18,541.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,989.36 : 31,725.27 = 13,435.86 : x
  2. Step 2: Convert to fraction form
    22,989.36/31,725.27 = 13,435.86/x
  3. Step 3: Cross multiply
    22,989.36x = 31,725.27 × 13,435.86
  4. Step 4: Simplify right side
    22,989.36x = 426,256,286.18
  5. Step 5: Solve for x
    x = 426,256,286.18/22,989.36
  6. Step 6: Final answer
    x = 18,541.46

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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.