Home / 39,700.56-54,784.29-21,795.45

Finding the Fourth Proportional to 39,700.56, 54,784.29 and 21,795.45

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Solution

The fourth proportional to 39,700.56, 54,784.29 and 21,795.45 is: 30,076.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,700.56 : 54,784.29 = 21,795.45 : x
  2. Step 2: Convert to fraction form
    39,700.56/54,784.29 = 21,795.45/x
  3. Step 3: Cross multiply
    39,700.56x = 54,784.29 × 21,795.45
  4. Step 4: Simplify right side
    39,700.56x = 1,194,048,253.48
  5. Step 5: Solve for x
    x = 1,194,048,253.48/39,700.56
  6. Step 6: Final answer
    x = 30,076.36

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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.