Home / 21,033.47-29,019.82-12,079.23

Finding the Fourth Proportional to 21,033.47, 29,019.82 and 12,079.23

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Solution

The fourth proportional to 21,033.47, 29,019.82 and 12,079.23 is: 16,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.47 : 29,019.82 = 12,079.23 : x
  2. Step 2: Convert to fraction form
    21,033.47/29,019.82 = 12,079.23/x
  3. Step 3: Cross multiply
    21,033.47x = 29,019.82 × 12,079.23
  4. Step 4: Simplify right side
    21,033.47x = 350,536,963.96
  5. Step 5: Solve for x
    x = 350,536,963.96/21,033.47
  6. Step 6: Final answer
    x = 16,665.67

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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.