Home / 22,829.59-31,513.62-20,435.34

Finding the Fourth Proportional to 22,829.59, 31,513.62 and 20,435.34

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Solution

The fourth proportional to 22,829.59, 31,513.62 and 20,435.34 is: 28,208.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,829.59 : 31,513.62 = 20,435.34 : x
  2. Step 2: Convert to fraction form
    22,829.59/31,513.62 = 20,435.34/x
  3. Step 3: Cross multiply
    22,829.59x = 31,513.62 × 20,435.34
  4. Step 4: Simplify right side
    22,829.59x = 643,991,539.33
  5. Step 5: Solve for x
    x = 643,991,539.33/22,829.59
  6. Step 6: Final answer
    x = 28,208.63

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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.