Home / 21,230.46-29,301.57-12,283.38

Finding the Fourth Proportional to 21,230.46, 29,301.57 and 12,283.38

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Solution

The fourth proportional to 21,230.46, 29,301.57 and 12,283.38 is: 16,953.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.46 : 29,301.57 = 12,283.38 : x
  2. Step 2: Convert to fraction form
    21,230.46/29,301.57 = 12,283.38/x
  3. Step 3: Cross multiply
    21,230.46x = 29,301.57 × 12,283.38
  4. Step 4: Simplify right side
    21,230.46x = 359,922,318.91
  5. Step 5: Solve for x
    x = 359,922,318.91/21,230.46
  6. Step 6: Final answer
    x = 16,953.11

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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.