Home / 21,176.51-29,223.41-11,744.87

Finding the Fourth Proportional to 21,176.51, 29,223.41 and 11,744.87

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Solution

The fourth proportional to 21,176.51, 29,223.41 and 11,744.87 is: 16,207.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.51 : 29,223.41 = 11,744.87 : x
  2. Step 2: Convert to fraction form
    21,176.51/29,223.41 = 11,744.87/x
  3. Step 3: Cross multiply
    21,176.51x = 29,223.41 × 11,744.87
  4. Step 4: Simplify right side
    21,176.51x = 343,224,946.57
  5. Step 5: Solve for x
    x = 343,224,946.57/21,176.51
  6. Step 6: Final answer
    x = 16,207.82

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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.