Home / 22,489.56-31,029.89-12,798.99

Finding the Fourth Proportional to 22,489.56, 31,029.89 and 12,798.99

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Solution

The fourth proportional to 22,489.56, 31,029.89 and 12,798.99 is: 17,659.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,489.56 : 31,029.89 = 12,798.99 : x
  2. Step 2: Convert to fraction form
    22,489.56/31,029.89 = 12,798.99/x
  3. Step 3: Cross multiply
    22,489.56x = 31,029.89 × 12,798.99
  4. Step 4: Simplify right side
    22,489.56x = 397,151,187.82
  5. Step 5: Solve for x
    x = 397,151,187.82/22,489.56
  6. Step 6: Final answer
    x = 17,659.36

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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.