Home / 32,872.32-45,372.24-20,289.84

Finding the Fourth Proportional to 32,872.32, 45,372.24 and 20,289.84

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Solution

The fourth proportional to 32,872.32, 45,372.24 and 20,289.84 is: 28,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,872.32 : 45,372.24 = 20,289.84 : x
  2. Step 2: Convert to fraction form
    32,872.32/45,372.24 = 20,289.84/x
  3. Step 3: Cross multiply
    32,872.32x = 45,372.24 × 20,289.84
  4. Step 4: Simplify right side
    32,872.32x = 920,595,490.04
  5. Step 5: Solve for x
    x = 920,595,490.04/32,872.32
  6. Step 6: Final answer
    x = 28,005.19

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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.