Home / 21,456.36-29,610.36-12,025.53

Finding the Fourth Proportional to 21,456.36, 29,610.36 and 12,025.53

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Solution

The fourth proportional to 21,456.36, 29,610.36 and 12,025.53 is: 16,595.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456.36 : 29,610.36 = 12,025.53 : x
  2. Step 2: Convert to fraction form
    21,456.36/29,610.36 = 12,025.53/x
  3. Step 3: Cross multiply
    21,456.36x = 29,610.36 × 12,025.53
  4. Step 4: Simplify right side
    21,456.36x = 356,080,272.49
  5. Step 5: Solve for x
    x = 356,080,272.49/21,456.36
  6. Step 6: Final answer
    x = 16,595.56

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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.