Home / 30,489.40-45,734.10-25,823.80

Finding the Fourth Proportional to 30,489.40, 45,734.10 and 25,823.80

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Solution

The fourth proportional to 30,489.40, 45,734.10 and 25,823.80 is: 38,735.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,489.40 : 45,734.10 = 25,823.80 : x
  2. Step 2: Convert to fraction form
    30,489.40/45,734.10 = 25,823.80/x
  3. Step 3: Cross multiply
    30,489.40x = 45,734.10 × 25,823.80
  4. Step 4: Simplify right side
    30,489.40x = 1,181,028,251.58
  5. Step 5: Solve for x
    x = 1,181,028,251.58/30,489.40
  6. Step 6: Final answer
    x = 38,735.70

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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.