Home / 18,638.28-27,907.74-15,685.92

Finding the Fourth Proportional to 18,638.28, 27,907.74 and 15,685.92

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Solution

The fourth proportional to 18,638.28, 27,907.74 and 15,685.92 is: 23,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.28 : 27,907.74 = 15,685.92 : x
  2. Step 2: Convert to fraction form
    18,638.28/27,907.74 = 15,685.92/x
  3. Step 3: Cross multiply
    18,638.28x = 27,907.74 × 15,685.92
  4. Step 4: Simplify right side
    18,638.28x = 437,758,577.02
  5. Step 5: Solve for x
    x = 437,758,577.02/18,638.28
  6. Step 6: Final answer
    x = 23,487.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.