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Finding the Fourth Proportional to 38,940.03, 53,737.26 and 21,035.03

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Solution

The fourth proportional to 38,940.03, 53,737.26 and 21,035.03 is: 29,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,940.03 : 53,737.26 = 21,035.03 : x
  2. Step 2: Convert to fraction form
    38,940.03/53,737.26 = 21,035.03/x
  3. Step 3: Cross multiply
    38,940.03x = 53,737.26 × 21,035.03
  4. Step 4: Simplify right side
    38,940.03x = 1,130,364,502.36
  5. Step 5: Solve for x
    x = 1,130,364,502.36/38,940.03
  6. Step 6: Final answer
    x = 29,028.35

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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.