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Finding the Fourth Proportional to 32,490, 48,737.43 and 18,444.60

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Solution

The fourth proportional to 32,490, 48,737.43 and 18,444.60 is: 27,668.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,490 : 48,737.43 = 18,444.60 : x
  2. Step 2: Convert to fraction form
    32,490/48,737.43 = 18,444.60/x
  3. Step 3: Cross multiply
    32,490x = 48,737.43 × 18,444.60
  4. Step 4: Simplify right side
    32,490x = 898,942,401.38
  5. Step 5: Solve for x
    x = 898,942,401.38/32,490
  6. Step 6: Final answer
    x = 27,668.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.