Home / 20,215.08-27,924.03-18,328.77

Finding the Fourth Proportional to 20,215.08, 27,924.03 and 18,328.77

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Solution

The fourth proportional to 20,215.08, 27,924.03 and 18,328.77 is: 25,318.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.08 : 27,924.03 = 18,328.77 : x
  2. Step 2: Convert to fraction form
    20,215.08/27,924.03 = 18,328.77/x
  3. Step 3: Cross multiply
    20,215.08x = 27,924.03 × 18,328.77
  4. Step 4: Simplify right side
    20,215.08x = 511,813,123.34
  5. Step 5: Solve for x
    x = 511,813,123.34/20,215.08
  6. Step 6: Final answer
    x = 25,318.38

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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.