Home / 39,561.93-54,595.99-21,656.55

Finding the Fourth Proportional to 39,561.93, 54,595.99 and 21,656.55

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Solution

The fourth proportional to 39,561.93, 54,595.99 and 21,656.55 is: 29,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,561.93 : 54,595.99 = 21,656.55 : x
  2. Step 2: Convert to fraction form
    39,561.93/54,595.99 = 21,656.55/x
  3. Step 3: Cross multiply
    39,561.93x = 54,595.99 × 21,656.55
  4. Step 4: Simplify right side
    39,561.93x = 1,182,360,787.23
  5. Step 5: Solve for x
    x = 1,182,360,787.23/39,561.93
  6. Step 6: Final answer
    x = 29,886.33

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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.