Home / 21,177.89-29,224.49-11,746.25

Finding the Fourth Proportional to 21,177.89, 29,224.49 and 11,746.25

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Solution

The fourth proportional to 21,177.89, 29,224.49 and 11,746.25 is: 16,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.89 : 29,224.49 = 11,746.25 : x
  2. Step 2: Convert to fraction form
    21,177.89/29,224.49 = 11,746.25/x
  3. Step 3: Cross multiply
    21,177.89x = 29,224.49 × 11,746.25
  4. Step 4: Simplify right side
    21,177.89x = 343,277,960.81
  5. Step 5: Solve for x
    x = 343,277,960.81/21,177.89
  6. Step 6: Final answer
    x = 16,209.27

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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.