Home / 39,717.25-54,809.60-21,567.81

Finding the Fourth Proportional to 39,717.25, 54,809.60 and 21,567.81

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Solution

The fourth proportional to 39,717.25, 54,809.60 and 21,567.81 is: 29,763.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,717.25 : 54,809.60 = 21,567.81 : x
  2. Step 2: Convert to fraction form
    39,717.25/54,809.60 = 21,567.81/x
  3. Step 3: Cross multiply
    39,717.25x = 54,809.60 × 21,567.81
  4. Step 4: Simplify right side
    39,717.25x = 1,182,123,038.98
  5. Step 5: Solve for x
    x = 1,182,123,038.98/39,717.25
  6. Step 6: Final answer
    x = 29,763.47

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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.