Home / 32,829.57-45,278.06-20,872.35

Finding the Fourth Proportional to 32,829.57, 45,278.06 and 20,872.35

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Solution

The fourth proportional to 32,829.57, 45,278.06 and 20,872.35 is: 28,786.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,829.57 : 45,278.06 = 20,872.35 : x
  2. Step 2: Convert to fraction form
    32,829.57/45,278.06 = 20,872.35/x
  3. Step 3: Cross multiply
    32,829.57x = 45,278.06 × 20,872.35
  4. Step 4: Simplify right side
    32,829.57x = 945,059,411.28
  5. Step 5: Solve for x
    x = 945,059,411.28/32,829.57
  6. Step 6: Final answer
    x = 28,786.83

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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.