Home / 21,058.72-29,061.84-11,628.32

Finding the Fourth Proportional to 21,058.72, 29,061.84 and 11,628.32

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Solution

The fourth proportional to 21,058.72, 29,061.84 and 11,628.32 is: 16,047.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.72 : 29,061.84 = 11,628.32 : x
  2. Step 2: Convert to fraction form
    21,058.72/29,061.84 = 11,628.32/x
  3. Step 3: Cross multiply
    21,058.72x = 29,061.84 × 11,628.32
  4. Step 4: Simplify right side
    21,058.72x = 337,940,375.31
  5. Step 5: Solve for x
    x = 337,940,375.31/21,058.72
  6. Step 6: Final answer
    x = 16,047.53

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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.