Home / 18,338.14-27,521.01-13,420.45

Finding the Fourth Proportional to 18,338.14, 27,521.01 and 13,420.45

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Solution

The fourth proportional to 18,338.14, 27,521.01 and 13,420.45 is: 20,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.14 : 27,521.01 = 13,420.45 : x
  2. Step 2: Convert to fraction form
    18,338.14/27,521.01 = 13,420.45/x
  3. Step 3: Cross multiply
    18,338.14x = 27,521.01 × 13,420.45
  4. Step 4: Simplify right side
    18,338.14x = 369,344,338.65
  5. Step 5: Solve for x
    x = 369,344,338.65/18,338.14
  6. Step 6: Final answer
    x = 20,140.77

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1.5x scale

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.