Home / 33,487.40-50,158.20-20,316.80

Finding the Fourth Proportional to 33,487.40, 50,158.20 and 20,316.80

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Solution

The fourth proportional to 33,487.40, 50,158.20 and 20,316.80 is: 30,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,487.40 : 50,158.20 = 20,316.80 : x
  2. Step 2: Convert to fraction form
    33,487.40/50,158.20 = 20,316.80/x
  3. Step 3: Cross multiply
    33,487.40x = 50,158.20 × 20,316.80
  4. Step 4: Simplify right side
    33,487.40x = 1,019,054,117.76
  5. Step 5: Solve for x
    x = 1,019,054,117.76/33,487.40
  6. Step 6: Final answer
    x = 30,430.97

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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.