Home / 21,020.24-29,003.40-12,065.84

Finding the Fourth Proportional to 21,020.24, 29,003.40 and 12,065.84

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Solution

The fourth proportional to 21,020.24, 29,003.40 and 12,065.84 is: 16,648.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.24 : 29,003.40 = 12,065.84 : x
  2. Step 2: Convert to fraction form
    21,020.24/29,003.40 = 12,065.84/x
  3. Step 3: Cross multiply
    21,020.24x = 29,003.40 × 12,065.84
  4. Step 4: Simplify right side
    21,020.24x = 349,950,383.86
  5. Step 5: Solve for x
    x = 349,950,383.86/21,020.24
  6. Step 6: Final answer
    x = 16,648.26

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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.