Home / 30,228.20-45,342.30-25,416.80

Finding the Fourth Proportional to 30,228.20, 45,342.30 and 25,416.80

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Solution

The fourth proportional to 30,228.20, 45,342.30 and 25,416.80 is: 38,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228.20 : 45,342.30 = 25,416.80 : x
  2. Step 2: Convert to fraction form
    30,228.20/45,342.30 = 25,416.80/x
  3. Step 3: Cross multiply
    30,228.20x = 45,342.30 × 25,416.80
  4. Step 4: Simplify right side
    30,228.20x = 1,152,456,170.64
  5. Step 5: Solve for x
    x = 1,152,456,170.64/30,228.20
  6. Step 6: Final answer
    x = 38,125.20

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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.