Home / 39,551.54-54,579.79-21,646.16

Finding the Fourth Proportional to 39,551.54, 54,579.79 and 21,646.16

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Solution

The fourth proportional to 39,551.54, 54,579.79 and 21,646.16 is: 29,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,551.54 : 54,579.79 = 21,646.16 : x
  2. Step 2: Convert to fraction form
    39,551.54/54,579.79 = 21,646.16/x
  3. Step 3: Cross multiply
    39,551.54x = 54,579.79 × 21,646.16
  4. Step 4: Simplify right side
    39,551.54x = 1,181,442,888.13
  5. Step 5: Solve for x
    x = 1,181,442,888.13/39,551.54
  6. Step 6: Final answer
    x = 29,870.97

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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.