Home / 39,835.08-54,973.89-21,930.84

Finding the Fourth Proportional to 39,835.08, 54,973.89 and 21,930.84

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Solution

The fourth proportional to 39,835.08, 54,973.89 and 21,930.84 is: 30,265.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,835.08 : 54,973.89 = 21,930.84 : x
  2. Step 2: Convert to fraction form
    39,835.08/54,973.89 = 21,930.84/x
  3. Step 3: Cross multiply
    39,835.08x = 54,973.89 × 21,930.84
  4. Step 4: Simplify right side
    39,835.08x = 1,205,623,585.77
  5. Step 5: Solve for x
    x = 1,205,623,585.77/39,835.08
  6. Step 6: Final answer
    x = 30,265.37

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1.5x scale

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.