Home / 21,462.20-29,617.74-12,030.78

Finding the Fourth Proportional to 21,462.20, 29,617.74 and 12,030.78

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Solution

The fourth proportional to 21,462.20, 29,617.74 and 12,030.78 is: 16,602.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.20 : 29,617.74 = 12,030.78 : x
  2. Step 2: Convert to fraction form
    21,462.20/29,617.74 = 12,030.78/x
  3. Step 3: Cross multiply
    21,462.20x = 29,617.74 × 12,030.78
  4. Step 4: Simplify right side
    21,462.20x = 356,324,514.04
  5. Step 5: Solve for x
    x = 356,324,514.04/21,462.20
  6. Step 6: Final answer
    x = 16,602.42

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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.