Home / 21,031.53-29,022.75-11,599.89

Finding the Fourth Proportional to 21,031.53, 29,022.75 and 11,599.89

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Solution

The fourth proportional to 21,031.53, 29,022.75 and 11,599.89 is: 16,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.53 : 29,022.75 = 11,599.89 : x
  2. Step 2: Convert to fraction form
    21,031.53/29,022.75 = 11,599.89/x
  3. Step 3: Cross multiply
    21,031.53x = 29,022.75 × 11,599.89
  4. Step 4: Simplify right side
    21,031.53x = 336,660,707.50
  5. Step 5: Solve for x
    x = 336,660,707.50/21,031.53
  6. Step 6: Final answer
    x = 16,007.43

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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.