Home / 19,855.23-27,399.87-10,902.50

Finding the Fourth Proportional to 19,855.23, 27,399.87 and 10,902.50

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Solution

The fourth proportional to 19,855.23, 27,399.87 and 10,902.50 is: 15,045.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,855.23 : 27,399.87 = 10,902.50 : x
  2. Step 2: Convert to fraction form
    19,855.23/27,399.87 = 10,902.50/x
  3. Step 3: Cross multiply
    19,855.23x = 27,399.87 × 10,902.50
  4. Step 4: Simplify right side
    19,855.23x = 298,727,048.43
  5. Step 5: Solve for x
    x = 298,727,048.43/19,855.23
  6. Step 6: Final answer
    x = 15,045.26

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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.