Home / 18,421.23-27,610.44-10,529.28

Finding the Fourth Proportional to 18,421.23, 27,610.44 and 10,529.28

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Solution

The fourth proportional to 18,421.23, 27,610.44 and 10,529.28 is: 15,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.23 : 27,610.44 = 10,529.28 : x
  2. Step 2: Convert to fraction form
    18,421.23/27,610.44 = 10,529.28/x
  3. Step 3: Cross multiply
    18,421.23x = 27,610.44 × 10,529.28
  4. Step 4: Simplify right side
    18,421.23x = 290,718,053.68
  5. Step 5: Solve for x
    x = 290,718,053.68/18,421.23
  6. Step 6: Final answer
    x = 15,781.69

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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.