Home / 28,090.94-38,764.62-15,343.92

Finding the Fourth Proportional to 28,090.94, 38,764.62 and 15,343.92

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Solution

The fourth proportional to 28,090.94, 38,764.62 and 15,343.92 is: 21,174.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.94 : 38,764.62 = 15,343.92 : x
  2. Step 2: Convert to fraction form
    28,090.94/38,764.62 = 15,343.92/x
  3. Step 3: Cross multiply
    28,090.94x = 38,764.62 × 15,343.92
  4. Step 4: Simplify right side
    28,090.94x = 594,801,228.11
  5. Step 5: Solve for x
    x = 594,801,228.11/28,090.94
  6. Step 6: Final answer
    x = 21,174.13

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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.