Home / 30,440.18-45,660.16-8,253.50

Finding the Fourth Proportional to 30,440.18, 45,660.16 and 8,253.50

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Solution

The fourth proportional to 30,440.18, 45,660.16 and 8,253.50 is: 12,380.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.18 : 45,660.16 = 8,253.50 : x
  2. Step 2: Convert to fraction form
    30,440.18/45,660.16 = 8,253.50/x
  3. Step 3: Cross multiply
    30,440.18x = 45,660.16 × 8,253.50
  4. Step 4: Simplify right side
    30,440.18x = 376,855,866.15
  5. Step 5: Solve for x
    x = 376,855,866.15/30,440.18
  6. Step 6: Final answer
    x = 12,380.21

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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.