Home / 39,710.04-54,799.95-21,806.19

Finding the Fourth Proportional to 39,710.04, 54,799.95 and 21,806.19

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Solution

The fourth proportional to 39,710.04, 54,799.95 and 21,806.19 is: 30,092.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,710.04 : 54,799.95 = 21,806.19 : x
  2. Step 2: Convert to fraction form
    39,710.04/54,799.95 = 21,806.19/x
  3. Step 3: Cross multiply
    39,710.04x = 54,799.95 × 21,806.19
  4. Step 4: Simplify right side
    39,710.04x = 1,194,978,121.69
  5. Step 5: Solve for x
    x = 1,194,978,121.69/39,710.04
  6. Step 6: Final answer
    x = 30,092.59

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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.