Home / 22,958.88-31,682.16-12,886.08

Finding the Fourth Proportional to 22,958.88, 31,682.16 and 12,886.08

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Solution

The fourth proportional to 22,958.88, 31,682.16 and 12,886.08 is: 17,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,958.88 : 31,682.16 = 12,886.08 : x
  2. Step 2: Convert to fraction form
    22,958.88/31,682.16 = 12,886.08/x
  3. Step 3: Cross multiply
    22,958.88x = 31,682.16 × 12,886.08
  4. Step 4: Simplify right side
    22,958.88x = 408,258,848.33
  5. Step 5: Solve for x
    x = 408,258,848.33/22,958.88
  6. Step 6: Final answer
    x = 17,782.18

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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.