Home / 49,783.55-74,688.69-20,221.94

Finding the Fourth Proportional to 49,783.55, 74,688.69 and 20,221.94

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Solution

The fourth proportional to 49,783.55, 74,688.69 and 20,221.94 is: 30,338.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,783.55 : 74,688.69 = 20,221.94 : x
  2. Step 2: Convert to fraction form
    49,783.55/74,688.69 = 20,221.94/x
  3. Step 3: Cross multiply
    49,783.55x = 74,688.69 × 20,221.94
  4. Step 4: Simplify right side
    49,783.55x = 1,510,350,207.86
  5. Step 5: Solve for x
    x = 1,510,350,207.86/49,783.55
  6. Step 6: Final answer
    x = 30,338.34

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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.