Home / 25,892.70-38,782.14-21,399.45

Finding the Fourth Proportional to 25,892.70, 38,782.14 and 21,399.45

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Solution

The fourth proportional to 25,892.70, 38,782.14 and 21,399.45 is: 32,052.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,892.70 : 38,782.14 = 21,399.45 : x
  2. Step 2: Convert to fraction form
    25,892.70/38,782.14 = 21,399.45/x
  3. Step 3: Cross multiply
    25,892.70x = 38,782.14 × 21,399.45
  4. Step 4: Simplify right side
    25,892.70x = 829,916,465.82
  5. Step 5: Solve for x
    x = 829,916,465.82/25,892.70
  6. Step 6: Final answer
    x = 32,052.14

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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.