Home / 38,109.37-52,598.28-21,987.09

Finding the Fourth Proportional to 38,109.37, 52,598.28 and 21,987.09

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Solution

The fourth proportional to 38,109.37, 52,598.28 and 21,987.09 is: 30,346.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,109.37 : 52,598.28 = 21,987.09 : x
  2. Step 2: Convert to fraction form
    38,109.37/52,598.28 = 21,987.09/x
  3. Step 3: Cross multiply
    38,109.37x = 52,598.28 × 21,987.09
  4. Step 4: Simplify right side
    38,109.37x = 1,156,482,743.28
  5. Step 5: Solve for x
    x = 1,156,482,743.28/38,109.37
  6. Step 6: Final answer
    x = 30,346.42

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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.