Home / 39,561.81-54,595.82-21,656.43

Finding the Fourth Proportional to 39,561.81, 54,595.82 and 21,656.43

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Solution

The fourth proportional to 39,561.81, 54,595.82 and 21,656.43 is: 29,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,561.81 : 54,595.82 = 21,656.43 : x
  2. Step 2: Convert to fraction form
    39,561.81/54,595.82 = 21,656.43/x
  3. Step 3: Cross multiply
    39,561.81x = 54,595.82 × 21,656.43
  4. Step 4: Simplify right side
    39,561.81x = 1,182,350,554.12
  5. Step 5: Solve for x
    x = 1,182,350,554.12/39,561.81
  6. Step 6: Final answer
    x = 29,886.16

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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.