Home / 25,899.64-38,869.78-18,057.40

Finding the Fourth Proportional to 25,899.64, 38,869.78 and 18,057.40

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Solution

The fourth proportional to 25,899.64, 38,869.78 and 18,057.40 is: 27,100.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,899.64 : 38,869.78 = 18,057.40 : x
  2. Step 2: Convert to fraction form
    25,899.64/38,869.78 = 18,057.40/x
  3. Step 3: Cross multiply
    25,899.64x = 38,869.78 × 18,057.40
  4. Step 4: Simplify right side
    25,899.64x = 701,887,165.37
  5. Step 5: Solve for x
    x = 701,887,165.37/25,899.64
  6. Step 6: Final answer
    x = 27,100.27

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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.