Home / 21,324.55-29,418.36-12,366.86

Finding the Fourth Proportional to 21,324.55, 29,418.36 and 12,366.86

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Solution

The fourth proportional to 21,324.55, 29,418.36 and 12,366.86 is: 17,060.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.55 : 29,418.36 = 12,366.86 : x
  2. Step 2: Convert to fraction form
    21,324.55/29,418.36 = 12,366.86/x
  3. Step 3: Cross multiply
    21,324.55x = 29,418.36 × 12,366.86
  4. Step 4: Simplify right side
    21,324.55x = 363,812,828.55
  5. Step 5: Solve for x
    x = 363,812,828.55/21,324.55
  6. Step 6: Final answer
    x = 17,060.75

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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.