Home / 38,624.13-57,944.88-20,854.40

Finding the Fourth Proportional to 38,624.13, 57,944.88 and 20,854.40

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Solution

The fourth proportional to 38,624.13, 57,944.88 and 20,854.40 is: 31,286.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,624.13 : 57,944.88 = 20,854.40 : x
  2. Step 2: Convert to fraction form
    38,624.13/57,944.88 = 20,854.40/x
  3. Step 3: Cross multiply
    38,624.13x = 57,944.88 × 20,854.40
  4. Step 4: Simplify right side
    38,624.13x = 1,208,405,415.75
  5. Step 5: Solve for x
    x = 1,208,405,415.75/38,624.13
  6. Step 6: Final answer
    x = 31,286.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.