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Finding the Fourth Proportional to 21,737.60, 32,541.60 and 19,404.80

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Solution

The fourth proportional to 21,737.60, 32,541.60 and 19,404.80 is: 29,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,737.60 : 32,541.60 = 19,404.80 : x
  2. Step 2: Convert to fraction form
    21,737.60/32,541.60 = 19,404.80/x
  3. Step 3: Cross multiply
    21,737.60x = 32,541.60 × 19,404.80
  4. Step 4: Simplify right side
    21,737.60x = 631,463,239.68
  5. Step 5: Solve for x
    x = 631,463,239.68/21,737.60
  6. Step 6: Final answer
    x = 29,049.35

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1.5x scale

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.