Home / 30,281.20-41,789.04-18,947.08

Finding the Fourth Proportional to 30,281.20, 41,789.04 and 18,947.08

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Solution

The fourth proportional to 30,281.20, 41,789.04 and 18,947.08 is: 26,147.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281.20 : 41,789.04 = 18,947.08 : x
  2. Step 2: Convert to fraction form
    30,281.20/41,789.04 = 18,947.08/x
  3. Step 3: Cross multiply
    30,281.20x = 41,789.04 × 18,947.08
  4. Step 4: Simplify right side
    30,281.20x = 791,780,284.00
  5. Step 5: Solve for x
    x = 791,780,284.00/30,281.20
  6. Step 6: Final answer
    x = 26,147.59

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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.