Home / 20,100.36-27,748.02-13,397.16

Finding the Fourth Proportional to 20,100.36, 27,748.02 and 13,397.16

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Solution

The fourth proportional to 20,100.36, 27,748.02 and 13,397.16 is: 18,494.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.36 : 27,748.02 = 13,397.16 : x
  2. Step 2: Convert to fraction form
    20,100.36/27,748.02 = 13,397.16/x
  3. Step 3: Cross multiply
    20,100.36x = 27,748.02 × 13,397.16
  4. Step 4: Simplify right side
    20,100.36x = 371,744,663.62
  5. Step 5: Solve for x
    x = 371,744,663.62/20,100.36
  6. Step 6: Final answer
    x = 18,494.43

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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.