Home / 30,063.81-45,098.30-7,877.18

Finding the Fourth Proportional to 30,063.81, 45,098.30 and 7,877.18

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Solution

The fourth proportional to 30,063.81, 45,098.30 and 7,877.18 is: 11,816.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,063.81 : 45,098.30 = 7,877.18 : x
  2. Step 2: Convert to fraction form
    30,063.81/45,098.30 = 7,877.18/x
  3. Step 3: Cross multiply
    30,063.81x = 45,098.30 × 7,877.18
  4. Step 4: Simplify right side
    30,063.81x = 355,247,161.92
  5. Step 5: Solve for x
    x = 355,247,161.92/30,063.81
  6. Step 6: Final answer
    x = 11,816.44

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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.