Home / 25,829.97-35,631.81-21,327.45

Finding the Fourth Proportional to 25,829.97, 35,631.81 and 21,327.45

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Solution

The fourth proportional to 25,829.97, 35,631.81 and 21,327.45 is: 29,420.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,829.97 : 35,631.81 = 21,327.45 : x
  2. Step 2: Convert to fraction form
    25,829.97/35,631.81 = 21,327.45/x
  3. Step 3: Cross multiply
    25,829.97x = 35,631.81 × 21,327.45
  4. Step 4: Simplify right side
    25,829.97x = 759,935,646.18
  5. Step 5: Solve for x
    x = 759,935,646.18/25,829.97
  6. Step 6: Final answer
    x = 29,420.69

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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.