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Finding the Fourth Proportional to 33,328.80, 49,998.80 and 9,957.60

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Solution

The fourth proportional to 33,328.80, 49,998.80 and 9,957.60 is: 14,938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,328.80 : 49,998.80 = 9,957.60 : x
  2. Step 2: Convert to fraction form
    33,328.80/49,998.80 = 9,957.60/x
  3. Step 3: Cross multiply
    33,328.80x = 49,998.80 × 9,957.60
  4. Step 4: Simplify right side
    33,328.80x = 497,868,050.88
  5. Step 5: Solve for x
    x = 497,868,050.88/33,328.80
  6. Step 6: Final answer
    x = 14,938.07

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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.