Home / 28,194.13-38,907.89-15,448.13

Finding the Fourth Proportional to 28,194.13, 38,907.89 and 15,448.13

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Solution

The fourth proportional to 28,194.13, 38,907.89 and 15,448.13 is: 21,318.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.13 : 38,907.89 = 15,448.13 : x
  2. Step 2: Convert to fraction form
    28,194.13/38,907.89 = 15,448.13/x
  3. Step 3: Cross multiply
    28,194.13x = 38,907.89 × 15,448.13
  4. Step 4: Simplify right side
    28,194.13x = 601,053,948.21
  5. Step 5: Solve for x
    x = 601,053,948.21/28,194.13
  6. Step 6: Final answer
    x = 21,318.41

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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.