Home / 21,017.64-29,003.79-11,586.24

Finding the Fourth Proportional to 21,017.64, 29,003.79 and 11,586.24

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Solution

The fourth proportional to 21,017.64, 29,003.79 and 11,586.24 is: 15,988.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.64 : 29,003.79 = 11,586.24 : x
  2. Step 2: Convert to fraction form
    21,017.64/29,003.79 = 11,586.24/x
  3. Step 3: Cross multiply
    21,017.64x = 29,003.79 × 11,586.24
  4. Step 4: Simplify right side
    21,017.64x = 336,044,871.85
  5. Step 5: Solve for x
    x = 336,044,871.85/21,017.64
  6. Step 6: Final answer
    x = 15,988.71

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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.