Home / 32,728.48-45,160.38-18,385.56

Finding the Fourth Proportional to 32,728.48, 45,160.38 and 18,385.56

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Solution

The fourth proportional to 32,728.48, 45,160.38 and 18,385.56 is: 25,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,728.48 : 45,160.38 = 18,385.56 : x
  2. Step 2: Convert to fraction form
    32,728.48/45,160.38 = 18,385.56/x
  3. Step 3: Cross multiply
    32,728.48x = 45,160.38 × 18,385.56
  4. Step 4: Simplify right side
    32,728.48x = 830,298,876.11
  5. Step 5: Solve for x
    x = 830,298,876.11/32,728.48
  6. Step 6: Final answer
    x = 25,369.31

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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.