Home / 20,231.46-27,886.95-12,258.63

Finding the Fourth Proportional to 20,231.46, 27,886.95 and 12,258.63

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Solution

The fourth proportional to 20,231.46, 27,886.95 and 12,258.63 is: 16,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.46 : 27,886.95 = 12,258.63 : x
  2. Step 2: Convert to fraction form
    20,231.46/27,886.95 = 12,258.63/x
  3. Step 3: Cross multiply
    20,231.46x = 27,886.95 × 12,258.63
  4. Step 4: Simplify right side
    20,231.46x = 341,855,801.88
  5. Step 5: Solve for x
    x = 341,855,801.88/20,231.46
  6. Step 6: Final answer
    x = 16,897.24

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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.