Home / 20,101.90-27,722.46-12,548.93

Finding the Fourth Proportional to 20,101.90, 27,722.46 and 12,548.93

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Solution

The fourth proportional to 20,101.90, 27,722.46 and 12,548.93 is: 17,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.90 : 27,722.46 = 12,548.93 : x
  2. Step 2: Convert to fraction form
    20,101.90/27,722.46 = 12,548.93/x
  3. Step 3: Cross multiply
    20,101.90x = 27,722.46 × 12,548.93
  4. Step 4: Simplify right side
    20,101.90x = 347,887,071.36
  5. Step 5: Solve for x
    x = 347,887,071.36/20,101.90
  6. Step 6: Final answer
    x = 17,306.18

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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.