Home / 39,877.88-59,834.42-21,153.33

Finding the Fourth Proportional to 39,877.88, 59,834.42 and 21,153.33

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Solution

The fourth proportional to 39,877.88, 59,834.42 and 21,153.33 is: 31,739.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,877.88 : 59,834.42 = 21,153.33 : x
  2. Step 2: Convert to fraction form
    39,877.88/59,834.42 = 21,153.33/x
  3. Step 3: Cross multiply
    39,877.88x = 59,834.42 × 21,153.33
  4. Step 4: Simplify right side
    39,877.88x = 1,265,697,235.51
  5. Step 5: Solve for x
    x = 1,265,697,235.51/39,877.88
  6. Step 6: Final answer
    x = 31,739.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.