Home / 28,174.97-38,840.04-21,448.88

Finding the Fourth Proportional to 28,174.97, 38,840.04 and 21,448.88

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Solution

The fourth proportional to 28,174.97, 38,840.04 and 21,448.88 is: 29,567.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.97 : 38,840.04 = 21,448.88 : x
  2. Step 2: Convert to fraction form
    28,174.97/38,840.04 = 21,448.88/x
  3. Step 3: Cross multiply
    28,174.97x = 38,840.04 × 21,448.88
  4. Step 4: Simplify right side
    28,174.97x = 833,075,357.16
  5. Step 5: Solve for x
    x = 833,075,357.16/28,174.97
  6. Step 6: Final answer
    x = 29,567.92

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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.