Home / 28,052.48-38,720.64-17,436.80

Finding the Fourth Proportional to 28,052.48, 38,720.64 and 17,436.80

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Solution

The fourth proportional to 28,052.48, 38,720.64 and 17,436.80 is: 24,067.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,052.48 : 38,720.64 = 17,436.80 : x
  2. Step 2: Convert to fraction form
    28,052.48/38,720.64 = 17,436.80/x
  3. Step 3: Cross multiply
    28,052.48x = 38,720.64 × 17,436.80
  4. Step 4: Simplify right side
    28,052.48x = 675,164,055.55
  5. Step 5: Solve for x
    x = 675,164,055.55/28,052.48
  6. Step 6: Final answer
    x = 24,067.89

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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.