Home / 21,372.76-29,496.06-12,423.16

Finding the Fourth Proportional to 21,372.76, 29,496.06 and 12,423.16

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Solution

The fourth proportional to 21,372.76, 29,496.06 and 12,423.16 is: 17,144.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372.76 : 29,496.06 = 12,423.16 : x
  2. Step 2: Convert to fraction form
    21,372.76/29,496.06 = 12,423.16/x
  3. Step 3: Cross multiply
    21,372.76x = 29,496.06 × 12,423.16
  4. Step 4: Simplify right side
    21,372.76x = 366,434,272.75
  5. Step 5: Solve for x
    x = 366,434,272.75/21,372.76
  6. Step 6: Final answer
    x = 17,144.92

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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.