Home / 38,308.98-52,860.68-21,538.74

Finding the Fourth Proportional to 38,308.98, 52,860.68 and 21,538.74

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Solution

The fourth proportional to 38,308.98, 52,860.68 and 21,538.74 is: 29,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,308.98 : 52,860.68 = 21,538.74 : x
  2. Step 2: Convert to fraction form
    38,308.98/52,860.68 = 21,538.74/x
  3. Step 3: Cross multiply
    38,308.98x = 52,860.68 × 21,538.74
  4. Step 4: Simplify right side
    38,308.98x = 1,138,552,442.74
  5. Step 5: Solve for x
    x = 1,138,552,442.74/38,308.98
  6. Step 6: Final answer
    x = 29,720.25

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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.