Home / 30,816.83-46,220.69-8,628.80

Finding the Fourth Proportional to 30,816.83, 46,220.69 and 8,628.80

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Solution

The fourth proportional to 30,816.83, 46,220.69 and 8,628.80 is: 12,941.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,816.83 : 46,220.69 = 8,628.80 : x
  2. Step 2: Convert to fraction form
    30,816.83/46,220.69 = 8,628.80/x
  3. Step 3: Cross multiply
    30,816.83x = 46,220.69 × 8,628.80
  4. Step 4: Simplify right side
    30,816.83x = 398,829,089.87
  5. Step 5: Solve for x
    x = 398,829,089.87/30,816.83
  6. Step 6: Final answer
    x = 12,941.92

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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.