Home / 28,380.21-42,569.86-9,673.27

Finding the Fourth Proportional to 28,380.21, 42,569.86 and 9,673.27

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Solution

The fourth proportional to 28,380.21, 42,569.86 and 9,673.27 is: 14,509.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.21 : 42,569.86 = 9,673.27 : x
  2. Step 2: Convert to fraction form
    28,380.21/42,569.86 = 9,673.27/x
  3. Step 3: Cross multiply
    28,380.21x = 42,569.86 × 9,673.27
  4. Step 4: Simplify right side
    28,380.21x = 411,789,749.64
  5. Step 5: Solve for x
    x = 411,789,749.64/28,380.21
  6. Step 6: Final answer
    x = 14,509.75

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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.