Home / 21,360.54-29,475.33-12,409.92

Finding the Fourth Proportional to 21,360.54, 29,475.33 and 12,409.92

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Solution

The fourth proportional to 21,360.54, 29,475.33 and 12,409.92 is: 17,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.54 : 29,475.33 = 12,409.92 : x
  2. Step 2: Convert to fraction form
    21,360.54/29,475.33 = 12,409.92/x
  3. Step 3: Cross multiply
    21,360.54x = 29,475.33 × 12,409.92
  4. Step 4: Simplify right side
    21,360.54x = 365,786,487.27
  5. Step 5: Solve for x
    x = 365,786,487.27/21,360.54
  6. Step 6: Final answer
    x = 17,124.40

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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.