Home / 32,881.10-45,365.20-20,120.96

Finding the Fourth Proportional to 32,881.10, 45,365.20 and 20,120.96

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Solution

The fourth proportional to 32,881.10, 45,365.20 and 20,120.96 is: 27,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,881.10 : 45,365.20 = 20,120.96 : x
  2. Step 2: Convert to fraction form
    32,881.10/45,365.20 = 20,120.96/x
  3. Step 3: Cross multiply
    32,881.10x = 45,365.20 × 20,120.96
  4. Step 4: Simplify right side
    32,881.10x = 912,791,550.88
  5. Step 5: Solve for x
    x = 912,791,550.88/32,881.10
  6. Step 6: Final answer
    x = 27,760.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.