Home / 25,705.71-38,431.79-21,800.49

Finding the Fourth Proportional to 25,705.71, 38,431.79 and 21,800.49

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Solution

The fourth proportional to 25,705.71, 38,431.79 and 21,800.49 is: 32,593.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,705.71 : 38,431.79 = 21,800.49 : x
  2. Step 2: Convert to fraction form
    25,705.71/38,431.79 = 21,800.49/x
  3. Step 3: Cross multiply
    25,705.71x = 38,431.79 × 21,800.49
  4. Step 4: Simplify right side
    25,705.71x = 837,831,744.57
  5. Step 5: Solve for x
    x = 837,831,744.57/25,705.71
  6. Step 6: Final answer
    x = 32,593.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.