Home / 15,428.11-23,139.60-5,039.86

Finding the Fourth Proportional to 15,428.11, 23,139.60 and 5,039.86

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Solution

The fourth proportional to 15,428.11, 23,139.60 and 5,039.86 is: 7,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.11 : 23,139.60 = 5,039.86 : x
  2. Step 2: Convert to fraction form
    15,428.11/23,139.60 = 5,039.86/x
  3. Step 3: Cross multiply
    15,428.11x = 23,139.60 × 5,039.86
  4. Step 4: Simplify right side
    15,428.11x = 116,620,344.46
  5. Step 5: Solve for x
    x = 116,620,344.46/15,428.11
  6. Step 6: Final answer
    x = 7,558.95

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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.