Home / 20,048.44-27,679.40-12,881.24

Finding the Fourth Proportional to 20,048.44, 27,679.40 and 12,881.24

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Solution

The fourth proportional to 20,048.44, 27,679.40 and 12,881.24 is: 17,784.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,048.44 : 27,679.40 = 12,881.24 : x
  2. Step 2: Convert to fraction form
    20,048.44/27,679.40 = 12,881.24/x
  3. Step 3: Cross multiply
    20,048.44x = 27,679.40 × 12,881.24
  4. Step 4: Simplify right side
    20,048.44x = 356,544,994.46
  5. Step 5: Solve for x
    x = 356,544,994.46/20,048.44
  6. Step 6: Final answer
    x = 17,784.18

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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.