Home / 21,529.62-29,711.53-13,033.29

Finding the Fourth Proportional to 21,529.62, 29,711.53 and 13,033.29

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Solution

The fourth proportional to 21,529.62, 29,711.53 and 13,033.29 is: 17,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,529.62 : 29,711.53 = 13,033.29 : x
  2. Step 2: Convert to fraction form
    21,529.62/29,711.53 = 13,033.29/x
  3. Step 3: Cross multiply
    21,529.62x = 29,711.53 × 13,033.29
  4. Step 4: Simplify right side
    21,529.62x = 387,238,986.83
  5. Step 5: Solve for x
    x = 387,238,986.83/21,529.62
  6. Step 6: Final answer
    x = 17,986.34

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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.