Home / 21,058.88-29,052.12-12,104.36

Finding the Fourth Proportional to 21,058.88, 29,052.12 and 12,104.36

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Solution

The fourth proportional to 21,058.88, 29,052.12 and 12,104.36 is: 16,698.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.88 : 29,052.12 = 12,104.36 : x
  2. Step 2: Convert to fraction form
    21,058.88/29,052.12 = 12,104.36/x
  3. Step 3: Cross multiply
    21,058.88x = 29,052.12 × 12,104.36
  4. Step 4: Simplify right side
    21,058.88x = 351,657,319.24
  5. Step 5: Solve for x
    x = 351,657,319.24/21,058.88
  6. Step 6: Final answer
    x = 16,698.77

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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.