Home / 21,324.10-29,419.54-12,366.68

Finding the Fourth Proportional to 21,324.10, 29,419.54 and 12,366.68

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Solution

The fourth proportional to 21,324.10, 29,419.54 and 12,366.68 is: 17,061.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.10 : 29,419.54 = 12,366.68 : x
  2. Step 2: Convert to fraction form
    21,324.10/29,419.54 = 12,366.68/x
  3. Step 3: Cross multiply
    21,324.10x = 29,419.54 × 12,366.68
  4. Step 4: Simplify right side
    21,324.10x = 363,822,036.93
  5. Step 5: Solve for x
    x = 363,822,036.93/21,324.10
  6. Step 6: Final answer
    x = 17,061.54

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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.