Home / 21,180.91-29,233.16-11,752.51

Finding the Fourth Proportional to 21,180.91, 29,233.16 and 11,752.51

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Solution

The fourth proportional to 21,180.91, 29,233.16 and 11,752.51 is: 16,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180.91 : 29,233.16 = 11,752.51 : x
  2. Step 2: Convert to fraction form
    21,180.91/29,233.16 = 11,752.51/x
  3. Step 3: Cross multiply
    21,180.91x = 29,233.16 × 11,752.51
  4. Step 4: Simplify right side
    21,180.91x = 343,563,005.23
  5. Step 5: Solve for x
    x = 343,563,005.23/21,180.91
  6. Step 6: Final answer
    x = 16,220.41

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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.