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Finding the Fourth Proportional to 27,600.80, 38,090.02 and 15,503.41

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Solution

The fourth proportional to 27,600.80, 38,090.02 and 15,503.41 is: 21,395.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,600.80 : 38,090.02 = 15,503.41 : x
  2. Step 2: Convert to fraction form
    27,600.80/38,090.02 = 15,503.41/x
  3. Step 3: Cross multiply
    27,600.80x = 38,090.02 × 15,503.41
  4. Step 4: Simplify right side
    27,600.80x = 590,525,062.98
  5. Step 5: Solve for x
    x = 590,525,062.98/27,600.80
  6. Step 6: Final answer
    x = 21,395.22

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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.