Home / 25,686.96-38,492.55-11,651.28

Finding the Fourth Proportional to 25,686.96, 38,492.55 and 11,651.28

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Solution

The fourth proportional to 25,686.96, 38,492.55 and 11,651.28 is: 17,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,686.96 : 38,492.55 = 11,651.28 : x
  2. Step 2: Convert to fraction form
    25,686.96/38,492.55 = 11,651.28/x
  3. Step 3: Cross multiply
    25,686.96x = 38,492.55 × 11,651.28
  4. Step 4: Simplify right side
    25,686.96x = 448,487,477.96
  5. Step 5: Solve for x
    x = 448,487,477.96/25,686.96
  6. Step 6: Final answer
    x = 17,459.73

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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.