Home / 39,803.30-54,927.42-21,653.45

Finding the Fourth Proportional to 39,803.30, 54,927.42 and 21,653.45

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Solution

The fourth proportional to 39,803.30, 54,927.42 and 21,653.45 is: 29,881.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,803.30 : 54,927.42 = 21,653.45 : x
  2. Step 2: Convert to fraction form
    39,803.30/54,927.42 = 21,653.45/x
  3. Step 3: Cross multiply
    39,803.30x = 54,927.42 × 21,653.45
  4. Step 4: Simplify right side
    39,803.30x = 1,189,368,142.60
  5. Step 5: Solve for x
    x = 1,189,368,142.60/39,803.30
  6. Step 6: Final answer
    x = 29,881.14

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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.