Home / 25,688.28-38,531.87-11,837.28

Finding the Fourth Proportional to 25,688.28, 38,531.87 and 11,837.28

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Solution

The fourth proportional to 25,688.28, 38,531.87 and 11,837.28 is: 17,755.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,688.28 : 38,531.87 = 11,837.28 : x
  2. Step 2: Convert to fraction form
    25,688.28/38,531.87 = 11,837.28/x
  3. Step 3: Cross multiply
    25,688.28x = 38,531.87 × 11,837.28
  4. Step 4: Simplify right side
    25,688.28x = 456,112,534.11
  5. Step 5: Solve for x
    x = 456,112,534.11/25,688.28
  6. Step 6: Final answer
    x = 17,755.67

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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.