Home / 18,209.10-25,135.62-14,231.50

Finding the Fourth Proportional to 18,209.10, 25,135.62 and 14,231.50

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Solution

The fourth proportional to 18,209.10, 25,135.62 and 14,231.50 is: 19,644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.10 : 25,135.62 = 14,231.50 : x
  2. Step 2: Convert to fraction form
    18,209.10/25,135.62 = 14,231.50/x
  3. Step 3: Cross multiply
    18,209.10x = 25,135.62 × 14,231.50
  4. Step 4: Simplify right side
    18,209.10x = 357,717,459.82
  5. Step 5: Solve for x
    x = 357,717,459.82/18,209.10
  6. Step 6: Final answer
    x = 19,644.98

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1.5x scale

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.