Home / 20,089.76-27,714.96-14,125.28

Finding the Fourth Proportional to 20,089.76, 27,714.96 and 14,125.28

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Solution

The fourth proportional to 20,089.76, 27,714.96 and 14,125.28 is: 19,486.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.76 : 27,714.96 = 14,125.28 : x
  2. Step 2: Convert to fraction form
    20,089.76/27,714.96 = 14,125.28/x
  3. Step 3: Cross multiply
    20,089.76x = 27,714.96 × 14,125.28
  4. Step 4: Simplify right side
    20,089.76x = 391,481,570.19
  5. Step 5: Solve for x
    x = 391,481,570.19/20,089.76
  6. Step 6: Final answer
    x = 19,486.62

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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.