Home / 39,858.30-55,005.14-21,952.04

Finding the Fourth Proportional to 39,858.30, 55,005.14 and 21,952.04

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Solution

The fourth proportional to 39,858.30, 55,005.14 and 21,952.04 is: 30,294.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,858.30 : 55,005.14 = 21,952.04 : x
  2. Step 2: Convert to fraction form
    39,858.30/55,005.14 = 21,952.04/x
  3. Step 3: Cross multiply
    39,858.30x = 55,005.14 × 21,952.04
  4. Step 4: Simplify right side
    39,858.30x = 1,207,474,813.34
  5. Step 5: Solve for x
    x = 1,207,474,813.34/39,858.30
  6. Step 6: Final answer
    x = 30,294.19

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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.