Home / 18,209.04-25,065.26-15,699.44

Finding the Fourth Proportional to 18,209.04, 25,065.26 and 15,699.44

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Solution

The fourth proportional to 18,209.04, 25,065.26 and 15,699.44 is: 21,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.04 : 25,065.26 = 15,699.44 : x
  2. Step 2: Convert to fraction form
    18,209.04/25,065.26 = 15,699.44/x
  3. Step 3: Cross multiply
    18,209.04x = 25,065.26 × 15,699.44
  4. Step 4: Simplify right side
    18,209.04x = 393,510,545.45
  5. Step 5: Solve for x
    x = 393,510,545.45/18,209.04
  6. Step 6: Final answer
    x = 21,610.72

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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.