Home / 30,439.76-45,662.70-8,253.52

Finding the Fourth Proportional to 30,439.76, 45,662.70 and 8,253.52

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Solution

The fourth proportional to 30,439.76, 45,662.70 and 8,253.52 is: 12,381.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439.76 : 45,662.70 = 8,253.52 : x
  2. Step 2: Convert to fraction form
    30,439.76/45,662.70 = 8,253.52/x
  3. Step 3: Cross multiply
    30,439.76x = 45,662.70 × 8,253.52
  4. Step 4: Simplify right side
    30,439.76x = 376,878,007.70
  5. Step 5: Solve for x
    x = 376,878,007.70/30,439.76
  6. Step 6: Final answer
    x = 12,381.11

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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.