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Finding the Fourth Proportional to 32,925, 45,436.50 and 18,021

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Solution

The fourth proportional to 32,925, 45,436.50 and 18,021 is: 24,868.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,925 : 45,436.50 = 18,021 : x
  2. Step 2: Convert to fraction form
    32,925/45,436.50 = 18,021/x
  3. Step 3: Cross multiply
    32,925x = 45,436.50 × 18,021
  4. Step 4: Simplify right side
    32,925x = 818,811,166.50
  5. Step 5: Solve for x
    x = 818,811,166.50/32,925
  6. Step 6: Final answer
    x = 24,868.98

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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.