Home / 21,352.54-29,472.76-12,404.06

Finding the Fourth Proportional to 21,352.54, 29,472.76 and 12,404.06

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Solution

The fourth proportional to 21,352.54, 29,472.76 and 12,404.06 is: 17,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.54 : 29,472.76 = 12,404.06 : x
  2. Step 2: Convert to fraction form
    21,352.54/29,472.76 = 12,404.06/x
  3. Step 3: Cross multiply
    21,352.54x = 29,472.76 × 12,404.06
  4. Step 4: Simplify right side
    21,352.54x = 365,581,883.41
  5. Step 5: Solve for x
    x = 365,581,883.41/21,352.54
  6. Step 6: Final answer
    x = 17,121.24

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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.