Home / 25,155.11-34,712.63-15,078.50

Finding the Fourth Proportional to 25,155.11, 34,712.63 and 15,078.50

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Solution

The fourth proportional to 25,155.11, 34,712.63 and 15,078.50 is: 20,807.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,155.11 : 34,712.63 = 15,078.50 : x
  2. Step 2: Convert to fraction form
    25,155.11/34,712.63 = 15,078.50/x
  3. Step 3: Cross multiply
    25,155.11x = 34,712.63 × 15,078.50
  4. Step 4: Simplify right side
    25,155.11x = 523,414,515.93
  5. Step 5: Solve for x
    x = 523,414,515.93/25,155.11
  6. Step 6: Final answer
    x = 20,807.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.