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Finding the Fourth Proportional to 32,640.90, 45,040.46 and 18,297.42

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Solution

The fourth proportional to 32,640.90, 45,040.46 and 18,297.42 is: 25,248.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,640.90 : 45,040.46 = 18,297.42 : x
  2. Step 2: Convert to fraction form
    32,640.90/45,040.46 = 18,297.42/x
  3. Step 3: Cross multiply
    32,640.90x = 45,040.46 × 18,297.42
  4. Step 4: Simplify right side
    32,640.90x = 824,124,213.61
  5. Step 5: Solve for x
    x = 824,124,213.61/32,640.90
  6. Step 6: Final answer
    x = 25,248.21

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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.