Home / 20,026.54-27,638.82-12,763.88

Finding the Fourth Proportional to 20,026.54, 27,638.82 and 12,763.88

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Solution

The fourth proportional to 20,026.54, 27,638.82 and 12,763.88 is: 17,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,026.54 : 27,638.82 = 12,763.88 : x
  2. Step 2: Convert to fraction form
    20,026.54/27,638.82 = 12,763.88/x
  3. Step 3: Cross multiply
    20,026.54x = 27,638.82 × 12,763.88
  4. Step 4: Simplify right side
    20,026.54x = 352,778,547.27
  5. Step 5: Solve for x
    x = 352,778,547.27/20,026.54
  6. Step 6: Final answer
    x = 17,615.55

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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.