Home / 25,318.37-37,985.75-12,171.77

Finding the Fourth Proportional to 25,318.37, 37,985.75 and 12,171.77

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Solution

The fourth proportional to 25,318.37, 37,985.75 and 12,171.77 is: 18,261.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.37 : 37,985.75 = 12,171.77 : x
  2. Step 2: Convert to fraction form
    25,318.37/37,985.75 = 12,171.77/x
  3. Step 3: Cross multiply
    25,318.37x = 37,985.75 × 12,171.77
  4. Step 4: Simplify right side
    25,318.37x = 462,353,561.49
  5. Step 5: Solve for x
    x = 462,353,561.49/25,318.37
  6. Step 6: Final answer
    x = 18,261.59

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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.