Home / 25,757.10-38,631-9,117.30

Finding the Fourth Proportional to 25,757.10, 38,631 and 9,117.30

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Solution

The fourth proportional to 25,757.10, 38,631 and 9,117.30 is: 13,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,757.10 : 38,631 = 9,117.30 : x
  2. Step 2: Convert to fraction form
    25,757.10/38,631 = 9,117.30/x
  3. Step 3: Cross multiply
    25,757.10x = 38,631 × 9,117.30
  4. Step 4: Simplify right side
    25,757.10x = 352,210,416.30
  5. Step 5: Solve for x
    x = 352,210,416.30/25,757.10
  6. Step 6: Final answer
    x = 13,674.30

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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.