Home / 23,058.88-31,821.84-12,987.64

Finding the Fourth Proportional to 23,058.88, 31,821.84 and 12,987.64

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Solution

The fourth proportional to 23,058.88, 31,821.84 and 12,987.64 is: 17,923.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,058.88 : 31,821.84 = 12,987.64 : x
  2. Step 2: Convert to fraction form
    23,058.88/31,821.84 = 12,987.64/x
  3. Step 3: Cross multiply
    23,058.88x = 31,821.84 × 12,987.64
  4. Step 4: Simplify right side
    23,058.88x = 413,290,602.06
  5. Step 5: Solve for x
    x = 413,290,602.06/23,058.88
  6. Step 6: Final answer
    x = 17,923.27

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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.