Home / 38,379.12-52,987.68-31,322.40

Finding the Fourth Proportional to 38,379.12, 52,987.68 and 31,322.40

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Solution

The fourth proportional to 38,379.12, 52,987.68 and 31,322.40 is: 43,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,379.12 : 52,987.68 = 31,322.40 : x
  2. Step 2: Convert to fraction form
    38,379.12/52,987.68 = 31,322.40/x
  3. Step 3: Cross multiply
    38,379.12x = 52,987.68 × 31,322.40
  4. Step 4: Simplify right side
    38,379.12x = 1,659,701,308.03
  5. Step 5: Solve for x
    x = 1,659,701,308.03/38,379.12
  6. Step 6: Final answer
    x = 43,244.90

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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.