Home / 18,758.34-28,215.27-16,969.86

Finding the Fourth Proportional to 18,758.34, 28,215.27 and 16,969.86

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Solution

The fourth proportional to 18,758.34, 28,215.27 and 16,969.86 is: 25,525.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.34 : 28,215.27 = 16,969.86 : x
  2. Step 2: Convert to fraction form
    18,758.34/28,215.27 = 16,969.86/x
  3. Step 3: Cross multiply
    18,758.34x = 28,215.27 × 16,969.86
  4. Step 4: Simplify right side
    18,758.34x = 478,809,181.76
  5. Step 5: Solve for x
    x = 478,809,181.76/18,758.34
  6. Step 6: Final answer
    x = 25,525.14

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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.