Home / 38,940.16-53,737.36-21,035.16

Finding the Fourth Proportional to 38,940.16, 53,737.36 and 21,035.16

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Solution

The fourth proportional to 38,940.16, 53,737.36 and 21,035.16 is: 29,028.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,940.16 : 53,737.36 = 21,035.16 : x
  2. Step 2: Convert to fraction form
    38,940.16/53,737.36 = 21,035.16/x
  3. Step 3: Cross multiply
    38,940.16x = 53,737.36 × 21,035.16
  4. Step 4: Simplify right side
    38,940.16x = 1,130,373,696.89
  5. Step 5: Solve for x
    x = 1,130,373,696.89/38,940.16
  6. Step 6: Final answer
    x = 29,028.48

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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.