Home / 38,518.88-53,155.36-21,523.44

Finding the Fourth Proportional to 38,518.88, 53,155.36 and 21,523.44

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Solution

The fourth proportional to 38,518.88, 53,155.36 and 21,523.44 is: 29,701.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,518.88 : 53,155.36 = 21,523.44 : x
  2. Step 2: Convert to fraction form
    38,518.88/53,155.36 = 21,523.44/x
  3. Step 3: Cross multiply
    38,518.88x = 53,155.36 × 21,523.44
  4. Step 4: Simplify right side
    38,518.88x = 1,144,086,201.64
  5. Step 5: Solve for x
    x = 1,144,086,201.64/38,518.88
  6. Step 6: Final answer
    x = 29,701.96

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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.