Home / 28,234.09-38,962.06-15,660.01

Finding the Fourth Proportional to 28,234.09, 38,962.06 and 15,660.01

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Solution

The fourth proportional to 28,234.09, 38,962.06 and 15,660.01 is: 21,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,234.09 : 38,962.06 = 15,660.01 : x
  2. Step 2: Convert to fraction form
    28,234.09/38,962.06 = 15,660.01/x
  3. Step 3: Cross multiply
    28,234.09x = 38,962.06 × 15,660.01
  4. Step 4: Simplify right side
    28,234.09x = 610,146,249.22
  5. Step 5: Solve for x
    x = 610,146,249.22/28,234.09
  6. Step 6: Final answer
    x = 21,610.27

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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.