Home / 21,250.16-29,326.92-11,820.56

Finding the Fourth Proportional to 21,250.16, 29,326.92 and 11,820.56

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Solution

The fourth proportional to 21,250.16, 29,326.92 and 11,820.56 is: 16,313.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.16 : 29,326.92 = 11,820.56 : x
  2. Step 2: Convert to fraction form
    21,250.16/29,326.92 = 11,820.56/x
  3. Step 3: Cross multiply
    21,250.16x = 29,326.92 × 11,820.56
  4. Step 4: Simplify right side
    21,250.16x = 346,660,617.48
  5. Step 5: Solve for x
    x = 346,660,617.48/21,250.16
  6. Step 6: Final answer
    x = 16,313.32

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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.